Home / 13,312.32-18,359.32-10,658.76

Finding the Fourth Proportional to 13,312.32, 18,359.32 and 10,658.76

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Solution

The fourth proportional to 13,312.32, 18,359.32 and 10,658.76 is: 14,699.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,312.32 : 18,359.32 = 10,658.76 : x
  2. Step 2: Convert to fraction form
    13,312.32/18,359.32 = 10,658.76/x
  3. Step 3: Cross multiply
    13,312.32x = 18,359.32 × 10,658.76
  4. Step 4: Simplify right side
    13,312.32x = 195,687,585.64
  5. Step 5: Solve for x
    x = 195,687,585.64/13,312.32
  6. Step 6: Final answer
    x = 14,699.74

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Half scale
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Double scale
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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.