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Finding the Fourth Proportional to 14,532.60, 21,777.02 and 7,128.08

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Solution

The fourth proportional to 14,532.60, 21,777.02 and 7,128.08 is: 10,681.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,532.60 : 21,777.02 = 7,128.08 : x
  2. Step 2: Convert to fraction form
    14,532.60/21,777.02 = 7,128.08/x
  3. Step 3: Cross multiply
    14,532.60x = 21,777.02 × 7,128.08
  4. Step 4: Simplify right side
    14,532.60x = 155,228,340.72
  5. Step 5: Solve for x
    x = 155,228,340.72/14,532.60
  6. Step 6: Final answer
    x = 10,681.39

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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.