Home / 14,590.12-20,132.40-8,216.40

Finding the Fourth Proportional to 14,590.12, 20,132.40 and 8,216.40

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Solution

The fourth proportional to 14,590.12, 20,132.40 and 8,216.40 is: 11,337.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,590.12 : 20,132.40 = 8,216.40 : x
  2. Step 2: Convert to fraction form
    14,590.12/20,132.40 = 8,216.40/x
  3. Step 3: Cross multiply
    14,590.12x = 20,132.40 × 8,216.40
  4. Step 4: Simplify right side
    14,590.12x = 165,415,851.36
  5. Step 5: Solve for x
    x = 165,415,851.36/14,590.12
  6. Step 6: Final answer
    x = 11,337.53

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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.