Home / 14,520.80-21,752.03-12,290.06

Finding the Fourth Proportional to 14,520.80, 21,752.03 and 12,290.06

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Solution

The fourth proportional to 14,520.80, 21,752.03 and 12,290.06 is: 18,410.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,520.80 : 21,752.03 = 12,290.06 : x
  2. Step 2: Convert to fraction form
    14,520.80/21,752.03 = 12,290.06/x
  3. Step 3: Cross multiply
    14,520.80x = 21,752.03 × 12,290.06
  4. Step 4: Simplify right side
    14,520.80x = 267,333,753.82
  5. Step 5: Solve for x
    x = 267,333,753.82/14,520.80
  6. Step 6: Final answer
    x = 18,410.40

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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.