Home / 10,117.62-15,148.44-5,176.62

Finding the Fourth Proportional to 10,117.62, 15,148.44 and 5,176.62

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Solution

The fourth proportional to 10,117.62, 15,148.44 and 5,176.62 is: 7,750.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,117.62 : 15,148.44 = 5,176.62 : x
  2. Step 2: Convert to fraction form
    10,117.62/15,148.44 = 5,176.62/x
  3. Step 3: Cross multiply
    10,117.62x = 15,148.44 × 5,176.62
  4. Step 4: Simplify right side
    10,117.62x = 78,417,717.47
  5. Step 5: Solve for x
    x = 78,417,717.47/10,117.62
  6. Step 6: Final answer
    x = 7,750.61

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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.