Home / 13,732.79-18,951.20-7,445.16

Finding the Fourth Proportional to 13,732.79, 18,951.20 and 7,445.16

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Solution

The fourth proportional to 13,732.79, 18,951.20 and 7,445.16 is: 10,274.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,732.79 : 18,951.20 = 7,445.16 : x
  2. Step 2: Convert to fraction form
    13,732.79/18,951.20 = 7,445.16/x
  3. Step 3: Cross multiply
    13,732.79x = 18,951.20 × 7,445.16
  4. Step 4: Simplify right side
    13,732.79x = 141,094,706.89
  5. Step 5: Solve for x
    x = 141,094,706.89/13,732.79
  6. Step 6: Final answer
    x = 10,274.30

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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.