Home / 15,146.96-20,898.60-9,767.12

Finding the Fourth Proportional to 15,146.96, 20,898.60 and 9,767.12

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Solution

The fourth proportional to 15,146.96, 20,898.60 and 9,767.12 is: 13,475.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,146.96 : 20,898.60 = 9,767.12 : x
  2. Step 2: Convert to fraction form
    15,146.96/20,898.60 = 9,767.12/x
  3. Step 3: Cross multiply
    15,146.96x = 20,898.60 × 9,767.12
  4. Step 4: Simplify right side
    15,146.96x = 204,119,134.03
  5. Step 5: Solve for x
    x = 204,119,134.03/15,146.96
  6. Step 6: Final answer
    x = 13,475.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.