Home / 14,702.28-20,289.23-7,987.97

Finding the Fourth Proportional to 14,702.28, 20,289.23 and 7,987.97

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Solution

The fourth proportional to 14,702.28, 20,289.23 and 7,987.97 is: 11,023.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,702.28 : 20,289.23 = 7,987.97 : x
  2. Step 2: Convert to fraction form
    14,702.28/20,289.23 = 7,987.97/x
  3. Step 3: Cross multiply
    14,702.28x = 20,289.23 × 7,987.97
  4. Step 4: Simplify right side
    14,702.28x = 162,069,619.18
  5. Step 5: Solve for x
    x = 162,069,619.18/14,702.28
  6. Step 6: Final answer
    x = 11,023.43

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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.