Home / 12,135.46-18,207.64-5,117.24

Finding the Fourth Proportional to 12,135.46, 18,207.64 and 5,117.24

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Solution

The fourth proportional to 12,135.46, 18,207.64 and 5,117.24 is: 7,677.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,135.46 : 18,207.64 = 5,117.24 : x
  2. Step 2: Convert to fraction form
    12,135.46/18,207.64 = 5,117.24/x
  3. Step 3: Cross multiply
    12,135.46x = 18,207.64 × 5,117.24
  4. Step 4: Simplify right side
    12,135.46x = 93,172,863.71
  5. Step 5: Solve for x
    x = 93,172,863.71/12,135.46
  6. Step 6: Final answer
    x = 7,677.74

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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.