Home / 18,209.10-25,128.93-10,251.30

Finding the Fourth Proportional to 18,209.10, 25,128.93 and 10,251.30

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Solution

The fourth proportional to 18,209.10, 25,128.93 and 10,251.30 is: 14,147.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,209.10 : 25,128.93 = 10,251.30 : x
  2. Step 2: Convert to fraction form
    18,209.10/25,128.93 = 10,251.30/x
  3. Step 3: Cross multiply
    18,209.10x = 25,128.93 × 10,251.30
  4. Step 4: Simplify right side
    18,209.10x = 257,604,200.11
  5. Step 5: Solve for x
    x = 257,604,200.11/18,209.10
  6. Step 6: Final answer
    x = 14,147.00

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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.