Home / 10,329.30-15,487.38-4,775.22

Finding the Fourth Proportional to 10,329.30, 15,487.38 and 4,775.22

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Solution

The fourth proportional to 10,329.30, 15,487.38 and 4,775.22 is: 7,159.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,329.30 : 15,487.38 = 4,775.22 : x
  2. Step 2: Convert to fraction form
    10,329.30/15,487.38 = 4,775.22/x
  3. Step 3: Cross multiply
    10,329.30x = 15,487.38 × 4,775.22
  4. Step 4: Simplify right side
    10,329.30x = 73,955,646.72
  5. Step 5: Solve for x
    x = 73,955,646.72/10,329.30
  6. Step 6: Final answer
    x = 7,159.79

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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.