Home / 16,971.20-25,460.40-5,125.40

Finding the Fourth Proportional to 16,971.20, 25,460.40 and 5,125.40

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Solution

The fourth proportional to 16,971.20, 25,460.40 and 5,125.40 is: 7,689.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,971.20 : 25,460.40 = 5,125.40 : x
  2. Step 2: Convert to fraction form
    16,971.20/25,460.40 = 5,125.40/x
  3. Step 3: Cross multiply
    16,971.20x = 25,460.40 × 5,125.40
  4. Step 4: Simplify right side
    16,971.20x = 130,494,734.16
  5. Step 5: Solve for x
    x = 130,494,734.16/16,971.20
  6. Step 6: Final answer
    x = 7,689.19

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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.