Home / 14,520.20-21,775.64-4,657.10

Finding the Fourth Proportional to 14,520.20, 21,775.64 and 4,657.10

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Solution

The fourth proportional to 14,520.20, 21,775.64 and 4,657.10 is: 6,984.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,520.20 : 21,775.64 = 4,657.10 : x
  2. Step 2: Convert to fraction form
    14,520.20/21,775.64 = 4,657.10/x
  3. Step 3: Cross multiply
    14,520.20x = 21,775.64 × 4,657.10
  4. Step 4: Simplify right side
    14,520.20x = 101,411,200.88
  5. Step 5: Solve for x
    x = 101,411,200.88/14,520.20
  6. Step 6: Final answer
    x = 6,984.15

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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.