Home / 15,345.12-22,988.46-7,938.48

Finding the Fourth Proportional to 15,345.12, 22,988.46 and 7,938.48

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Solution

The fourth proportional to 15,345.12, 22,988.46 and 7,938.48 is: 11,892.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,345.12 : 22,988.46 = 7,938.48 : x
  2. Step 2: Convert to fraction form
    15,345.12/22,988.46 = 7,938.48/x
  3. Step 3: Cross multiply
    15,345.12x = 22,988.46 × 7,938.48
  4. Step 4: Simplify right side
    15,345.12x = 182,493,429.94
  5. Step 5: Solve for x
    x = 182,493,429.94/15,345.12
  6. Step 6: Final answer
    x = 11,892.60

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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.