Home / 9,909.28-14,868.79-3,985.92

Finding the Fourth Proportional to 9,909.28, 14,868.79 and 3,985.92

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Solution

The fourth proportional to 9,909.28, 14,868.79 and 3,985.92 is: 5,980.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,909.28 : 14,868.79 = 3,985.92 : x
  2. Step 2: Convert to fraction form
    9,909.28/14,868.79 = 3,985.92/x
  3. Step 3: Cross multiply
    9,909.28x = 14,868.79 × 3,985.92
  4. Step 4: Simplify right side
    9,909.28x = 59,265,807.44
  5. Step 5: Solve for x
    x = 59,265,807.44/9,909.28
  6. Step 6: Final answer
    x = 5,980.84

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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.