Home / 14,478.01-21,720.76-4,089.76

Finding the Fourth Proportional to 14,478.01, 21,720.76 and 4,089.76

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Solution

The fourth proportional to 14,478.01, 21,720.76 and 4,089.76 is: 6,135.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,478.01 : 21,720.76 = 4,089.76 : x
  2. Step 2: Convert to fraction form
    14,478.01/21,720.76 = 4,089.76/x
  3. Step 3: Cross multiply
    14,478.01x = 21,720.76 × 4,089.76
  4. Step 4: Simplify right side
    14,478.01x = 88,832,630.89
  5. Step 5: Solve for x
    x = 88,832,630.89/14,478.01
  6. Step 6: Final answer
    x = 6,135.69

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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.