Home / 13,516.39-18,652.71-7,548.13

Finding the Fourth Proportional to 13,516.39, 18,652.71 and 7,548.13

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Solution

The fourth proportional to 13,516.39, 18,652.71 and 7,548.13 is: 10,416.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,516.39 : 18,652.71 = 7,548.13 : x
  2. Step 2: Convert to fraction form
    13,516.39/18,652.71 = 7,548.13/x
  3. Step 3: Cross multiply
    13,516.39x = 18,652.71 × 7,548.13
  4. Step 4: Simplify right side
    13,516.39x = 140,793,079.93
  5. Step 5: Solve for x
    x = 140,793,079.93/13,516.39
  6. Step 6: Final answer
    x = 10,416.47

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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.