Home / 10,656.61-15,988.20-4,419.52

Finding the Fourth Proportional to 10,656.61, 15,988.20 and 4,419.52

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Solution

The fourth proportional to 10,656.61, 15,988.20 and 4,419.52 is: 6,630.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,656.61 : 15,988.20 = 4,419.52 : x
  2. Step 2: Convert to fraction form
    10,656.61/15,988.20 = 4,419.52/x
  3. Step 3: Cross multiply
    10,656.61x = 15,988.20 × 4,419.52
  4. Step 4: Simplify right side
    10,656.61x = 70,660,169.66
  5. Step 5: Solve for x
    x = 70,660,169.66/10,656.61
  6. Step 6: Final answer
    x = 6,630.64

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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.