Home / 12,557.75-17,326.78-7,521.03

Finding the Fourth Proportional to 12,557.75, 17,326.78 and 7,521.03

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Solution

The fourth proportional to 12,557.75, 17,326.78 and 7,521.03 is: 10,377.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,557.75 : 17,326.78 = 7,521.03 : x
  2. Step 2: Convert to fraction form
    12,557.75/17,326.78 = 7,521.03/x
  3. Step 3: Cross multiply
    12,557.75x = 17,326.78 × 7,521.03
  4. Step 4: Simplify right side
    12,557.75x = 130,315,213.38
  5. Step 5: Solve for x
    x = 130,315,213.38/12,557.75
  6. Step 6: Final answer
    x = 10,377.28

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Half scale
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Double scale
Find fourth proportional to 12,558.75, 17,328.16 and 7,522.03
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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.