Home / 10,387.55-15,581.35-4,148.07

Finding the Fourth Proportional to 10,387.55, 15,581.35 and 4,148.07

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Solution

The fourth proportional to 10,387.55, 15,581.35 and 4,148.07 is: 6,222.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,387.55 : 15,581.35 = 4,148.07 : x
  2. Step 2: Convert to fraction form
    10,387.55/15,581.35 = 4,148.07/x
  3. Step 3: Cross multiply
    10,387.55x = 15,581.35 × 4,148.07
  4. Step 4: Simplify right side
    10,387.55x = 64,632,530.49
  5. Step 5: Solve for x
    x = 64,632,530.49/10,387.55
  6. Step 6: Final answer
    x = 6,222.11

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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.