Home / 14,086.50-21,114.56-9,159.68

Finding the Fourth Proportional to 14,086.50, 21,114.56 and 9,159.68

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Solution

The fourth proportional to 14,086.50, 21,114.56 and 9,159.68 is: 13,729.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,086.50 : 21,114.56 = 9,159.68 : x
  2. Step 2: Convert to fraction form
    14,086.50/21,114.56 = 9,159.68/x
  3. Step 3: Cross multiply
    14,086.50x = 21,114.56 × 9,159.68
  4. Step 4: Simplify right side
    14,086.50x = 193,402,612.94
  5. Step 5: Solve for x
    x = 193,402,612.94/14,086.50
  6. Step 6: Final answer
    x = 13,729.64

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1.5x scale

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.