Home / 12,423.02-17,144.20-7,118.85

Finding the Fourth Proportional to 12,423.02, 17,144.20 and 7,118.85

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Solution

The fourth proportional to 12,423.02, 17,144.20 and 7,118.85 is: 9,824.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,423.02 : 17,144.20 = 7,118.85 : x
  2. Step 2: Convert to fraction form
    12,423.02/17,144.20 = 7,118.85/x
  3. Step 3: Cross multiply
    12,423.02x = 17,144.20 × 7,118.85
  4. Step 4: Simplify right side
    12,423.02x = 122,046,988.17
  5. Step 5: Solve for x
    x = 122,046,988.17/12,423.02
  6. Step 6: Final answer
    x = 9,824.26

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Half scale
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Double scale
Find fourth proportional to 12,424.02, 17,145.58 and 7,119.85
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.