Home / 18,292.40-25,235.28-10,739.20

Finding the Fourth Proportional to 18,292.40, 25,235.28 and 10,739.20

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Solution

The fourth proportional to 18,292.40, 25,235.28 and 10,739.20 is: 14,815.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,292.40 : 25,235.28 = 10,739.20 : x
  2. Step 2: Convert to fraction form
    18,292.40/25,235.28 = 10,739.20/x
  3. Step 3: Cross multiply
    18,292.40x = 25,235.28 × 10,739.20
  4. Step 4: Simplify right side
    18,292.40x = 271,006,718.98
  5. Step 5: Solve for x
    x = 271,006,718.98/18,292.40
  6. Step 6: Final answer
    x = 14,815.26

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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.