Home / 13,747.86-18,948.89-10,516.57

Finding the Fourth Proportional to 13,747.86, 18,948.89 and 10,516.57

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Solution

The fourth proportional to 13,747.86, 18,948.89 and 10,516.57 is: 14,495.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,747.86 : 18,948.89 = 10,516.57 : x
  2. Step 2: Convert to fraction form
    13,747.86/18,948.89 = 10,516.57/x
  3. Step 3: Cross multiply
    13,747.86x = 18,948.89 × 10,516.57
  4. Step 4: Simplify right side
    13,747.86x = 199,277,307.03
  5. Step 5: Solve for x
    x = 199,277,307.03/13,747.86
  6. Step 6: Final answer
    x = 14,495.15

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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.