Home / 10,547.16-15,820.70-3,151.61

Finding the Fourth Proportional to 10,547.16, 15,820.70 and 3,151.61

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Solution

The fourth proportional to 10,547.16, 15,820.70 and 3,151.61 is: 4,727.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,547.16 : 15,820.70 = 3,151.61 : x
  2. Step 2: Convert to fraction form
    10,547.16/15,820.70 = 3,151.61/x
  3. Step 3: Cross multiply
    10,547.16x = 15,820.70 × 3,151.61
  4. Step 4: Simplify right side
    10,547.16x = 49,860,658.52
  5. Step 5: Solve for x
    x = 49,860,658.52/10,547.16
  6. Step 6: Final answer
    x = 4,727.40

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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.