Home / 10,117.20-15,175.80-10,052.40

Finding the Fourth Proportional to 10,117.20, 15,175.80 and 10,052.40

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Solution

The fourth proportional to 10,117.20, 15,175.80 and 10,052.40 is: 15,078.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,117.20 : 15,175.80 = 10,052.40 : x
  2. Step 2: Convert to fraction form
    10,117.20/15,175.80 = 10,052.40/x
  3. Step 3: Cross multiply
    10,117.20x = 15,175.80 × 10,052.40
  4. Step 4: Simplify right side
    10,117.20x = 152,553,211.92
  5. Step 5: Solve for x
    x = 152,553,211.92/10,117.20
  6. Step 6: Final answer
    x = 15,078.60

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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.