Home / 15,312.76-21,131.34-8,598.44

Finding the Fourth Proportional to 15,312.76, 21,131.34 and 8,598.44

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Solution

The fourth proportional to 15,312.76, 21,131.34 and 8,598.44 is: 11,865.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,312.76 : 21,131.34 = 8,598.44 : x
  2. Step 2: Convert to fraction form
    15,312.76/21,131.34 = 8,598.44/x
  3. Step 3: Cross multiply
    15,312.76x = 21,131.34 × 8,598.44
  4. Step 4: Simplify right side
    15,312.76x = 181,696,559.11
  5. Step 5: Solve for x
    x = 181,696,559.11/15,312.76
  6. Step 6: Final answer
    x = 11,865.70

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Double scale
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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.