Home / 14,702.24-20,289.11-7,987.86

Finding the Fourth Proportional to 14,702.24, 20,289.11 and 7,987.86

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Solution

The fourth proportional to 14,702.24, 20,289.11 and 7,987.86 is: 11,023.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,702.24 : 20,289.11 = 7,987.86 : x
  2. Step 2: Convert to fraction form
    14,702.24/20,289.11 = 7,987.86/x
  3. Step 3: Cross multiply
    14,702.24x = 20,289.11 × 7,987.86
  4. Step 4: Simplify right side
    14,702.24x = 162,066,530.27
  5. Step 5: Solve for x
    x = 162,066,530.27/14,702.24
  6. Step 6: Final answer
    x = 11,023.25

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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.