Home / 13,695.72-20,547.20-4,335.90

Finding the Fourth Proportional to 13,695.72, 20,547.20 and 4,335.90

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Solution

The fourth proportional to 13,695.72, 20,547.20 and 4,335.90 is: 6,505.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,695.72 : 20,547.20 = 4,335.90 : x
  2. Step 2: Convert to fraction form
    13,695.72/20,547.20 = 4,335.90/x
  3. Step 3: Cross multiply
    13,695.72x = 20,547.20 × 4,335.90
  4. Step 4: Simplify right side
    13,695.72x = 89,090,604.48
  5. Step 5: Solve for x
    x = 89,090,604.48/13,695.72
  6. Step 6: Final answer
    x = 6,505.00

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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.