Home / 14,385.39-21,580.20-4,521.39

Finding the Fourth Proportional to 14,385.39, 21,580.20 and 4,521.39

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Solution

The fourth proportional to 14,385.39, 21,580.20 and 4,521.39 is: 6,782.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,385.39 : 21,580.20 = 4,521.39 : x
  2. Step 2: Convert to fraction form
    14,385.39/21,580.20 = 4,521.39/x
  3. Step 3: Cross multiply
    14,385.39x = 21,580.20 × 4,521.39
  4. Step 4: Simplify right side
    14,385.39x = 97,572,500.48
  5. Step 5: Solve for x
    x = 97,572,500.48/14,385.39
  6. Step 6: Final answer
    x = 6,782.75

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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.