Home / 10,428.04-15,619.26-6,513.28

Finding the Fourth Proportional to 10,428.04, 15,619.26 and 6,513.28

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Solution

The fourth proportional to 10,428.04, 15,619.26 and 6,513.28 is: 9,755.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,428.04 : 15,619.26 = 6,513.28 : x
  2. Step 2: Convert to fraction form
    10,428.04/15,619.26 = 6,513.28/x
  3. Step 3: Cross multiply
    10,428.04x = 15,619.26 × 6,513.28
  4. Step 4: Simplify right side
    10,428.04x = 101,732,613.77
  5. Step 5: Solve for x
    x = 101,732,613.77/10,428.04
  6. Step 6: Final answer
    x = 9,755.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.