Home / 15,526.76-21,428.69-9,239.13

Finding the Fourth Proportional to 15,526.76, 21,428.69 and 9,239.13

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Solution

The fourth proportional to 15,526.76, 21,428.69 and 9,239.13 is: 12,751.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,526.76 : 21,428.69 = 9,239.13 : x
  2. Step 2: Convert to fraction form
    15,526.76/21,428.69 = 9,239.13/x
  3. Step 3: Cross multiply
    15,526.76x = 21,428.69 × 9,239.13
  4. Step 4: Simplify right side
    15,526.76x = 197,982,406.44
  5. Step 5: Solve for x
    x = 197,982,406.44/15,526.76
  6. Step 6: Final answer
    x = 12,751.05

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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.