Home / 18,630.28-25,707.90-10,564.30

Finding the Fourth Proportional to 18,630.28, 25,707.90 and 10,564.30

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Solution

The fourth proportional to 18,630.28, 25,707.90 and 10,564.30 is: 14,577.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,630.28 : 25,707.90 = 10,564.30 : x
  2. Step 2: Convert to fraction form
    18,630.28/25,707.90 = 10,564.30/x
  3. Step 3: Cross multiply
    18,630.28x = 25,707.90 × 10,564.30
  4. Step 4: Simplify right side
    18,630.28x = 271,585,967.97
  5. Step 5: Solve for x
    x = 271,585,967.97/18,630.28
  6. Step 6: Final answer
    x = 14,577.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.