Home / 10,128.48-15,192.96-4,284.04

Finding the Fourth Proportional to 10,128.48, 15,192.96 and 4,284.04

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Solution

The fourth proportional to 10,128.48, 15,192.96 and 4,284.04 is: 6,426.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,128.48 : 15,192.96 = 4,284.04 : x
  2. Step 2: Convert to fraction form
    10,128.48/15,192.96 = 4,284.04/x
  3. Step 3: Cross multiply
    10,128.48x = 15,192.96 × 4,284.04
  4. Step 4: Simplify right side
    10,128.48x = 65,087,248.36
  5. Step 5: Solve for x
    x = 65,087,248.36/10,128.48
  6. Step 6: Final answer
    x = 6,426.16

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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.