Home / 14,535.60-21,803.40-7,144.80

Finding the Fourth Proportional to 14,535.60, 21,803.40 and 7,144.80

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Solution

The fourth proportional to 14,535.60, 21,803.40 and 7,144.80 is: 10,717.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,535.60 : 21,803.40 = 7,144.80 : x
  2. Step 2: Convert to fraction form
    14,535.60/21,803.40 = 7,144.80/x
  3. Step 3: Cross multiply
    14,535.60x = 21,803.40 × 7,144.80
  4. Step 4: Simplify right side
    14,535.60x = 155,780,932.32
  5. Step 5: Solve for x
    x = 155,780,932.32/14,535.60
  6. Step 6: Final answer
    x = 10,717.20

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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.