Home / 14,139.60-21,210.24-3,751.32

Finding the Fourth Proportional to 14,139.60, 21,210.24 and 3,751.32

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Solution

The fourth proportional to 14,139.60, 21,210.24 and 3,751.32 is: 5,627.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,139.60 : 21,210.24 = 3,751.32 : x
  2. Step 2: Convert to fraction form
    14,139.60/21,210.24 = 3,751.32/x
  3. Step 3: Cross multiply
    14,139.60x = 21,210.24 × 3,751.32
  4. Step 4: Simplify right side
    14,139.60x = 79,566,397.52
  5. Step 5: Solve for x
    x = 79,566,397.52/14,139.60
  6. Step 6: Final answer
    x = 5,627.20

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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.