Home / 13,516.12-18,651.18-7,547.32

Finding the Fourth Proportional to 13,516.12, 18,651.18 and 7,547.32

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Solution

The fourth proportional to 13,516.12, 18,651.18 and 7,547.32 is: 10,414.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,516.12 : 18,651.18 = 7,547.32 : x
  2. Step 2: Convert to fraction form
    13,516.12/18,651.18 = 7,547.32/x
  3. Step 3: Cross multiply
    13,516.12x = 18,651.18 × 7,547.32
  4. Step 4: Simplify right side
    13,516.12x = 140,766,423.84
  5. Step 5: Solve for x
    x = 140,766,423.84/13,516.12
  6. Step 6: Final answer
    x = 10,414.71

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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.