Home / 18,320.18-25,280.64-10,360.89

Finding the Fourth Proportional to 18,320.18, 25,280.64 and 10,360.89

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Solution

The fourth proportional to 18,320.18, 25,280.64 and 10,360.89 is: 14,297.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,320.18 : 25,280.64 = 10,360.89 : x
  2. Step 2: Convert to fraction form
    18,320.18/25,280.64 = 10,360.89/x
  3. Step 3: Cross multiply
    18,320.18x = 25,280.64 × 10,360.89
  4. Step 4: Simplify right side
    18,320.18x = 261,929,930.17
  5. Step 5: Solve for x
    x = 261,929,930.17/18,320.18
  6. Step 6: Final answer
    x = 14,297.35

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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.