Home / 18,347.35-25,320.75-10,280.61

Finding the Fourth Proportional to 18,347.35, 25,320.75 and 10,280.61

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Solution

The fourth proportional to 18,347.35, 25,320.75 and 10,280.61 is: 14,188.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,347.35 : 25,320.75 = 10,280.61 : x
  2. Step 2: Convert to fraction form
    18,347.35/25,320.75 = 10,280.61/x
  3. Step 3: Cross multiply
    18,347.35x = 25,320.75 × 10,280.61
  4. Step 4: Simplify right side
    18,347.35x = 260,312,755.66
  5. Step 5: Solve for x
    x = 260,312,755.66/18,347.35
  6. Step 6: Final answer
    x = 14,188.03

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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.