Home / 14,702.55-20,289.66-7,988.23

Finding the Fourth Proportional to 14,702.55, 20,289.66 and 7,988.23

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Solution

The fourth proportional to 14,702.55, 20,289.66 and 7,988.23 is: 11,023.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,702.55 : 20,289.66 = 7,988.23 : x
  2. Step 2: Convert to fraction form
    14,702.55/20,289.66 = 7,988.23/x
  3. Step 3: Cross multiply
    14,702.55x = 20,289.66 × 7,988.23
  4. Step 4: Simplify right side
    14,702.55x = 162,078,470.70
  5. Step 5: Solve for x
    x = 162,078,470.70/14,702.55
  6. Step 6: Final answer
    x = 11,023.83

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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.