Home / 12,392.28-17,098.64-7,358.16

Finding the Fourth Proportional to 12,392.28, 17,098.64 and 7,358.16

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Solution

The fourth proportional to 12,392.28, 17,098.64 and 7,358.16 is: 10,152.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,392.28 : 17,098.64 = 7,358.16 : x
  2. Step 2: Convert to fraction form
    12,392.28/17,098.64 = 7,358.16/x
  3. Step 3: Cross multiply
    12,392.28x = 17,098.64 × 7,358.16
  4. Step 4: Simplify right side
    12,392.28x = 125,814,528.90
  5. Step 5: Solve for x
    x = 125,814,528.90/12,392.28
  6. Step 6: Final answer
    x = 10,152.65

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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.