Home / 15,387.12-23,066.16-7,484.64

Finding the Fourth Proportional to 15,387.12, 23,066.16 and 7,484.64

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Solution

The fourth proportional to 15,387.12, 23,066.16 and 7,484.64 is: 11,219.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,387.12 : 23,066.16 = 7,484.64 : x
  2. Step 2: Convert to fraction form
    15,387.12/23,066.16 = 7,484.64/x
  3. Step 3: Cross multiply
    15,387.12x = 23,066.16 × 7,484.64
  4. Step 4: Simplify right side
    15,387.12x = 172,641,903.78
  5. Step 5: Solve for x
    x = 172,641,903.78/15,387.12
  6. Step 6: Final answer
    x = 11,219.90

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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.