Home / 10,874.04-15,001.20-6,398.16

Finding the Fourth Proportional to 10,874.04, 15,001.20 and 6,398.16

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Solution

The fourth proportional to 10,874.04, 15,001.20 and 6,398.16 is: 8,826.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,874.04 : 15,001.20 = 6,398.16 : x
  2. Step 2: Convert to fraction form
    10,874.04/15,001.20 = 6,398.16/x
  3. Step 3: Cross multiply
    10,874.04x = 15,001.20 × 6,398.16
  4. Step 4: Simplify right side
    10,874.04x = 95,980,077.79
  5. Step 5: Solve for x
    x = 95,980,077.79/10,874.04
  6. Step 6: Final answer
    x = 8,826.53

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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.