Home / 18,153.64-25,036.50-15,334.76

Finding the Fourth Proportional to 18,153.64, 25,036.50 and 15,334.76

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Solution

The fourth proportional to 18,153.64, 25,036.50 and 15,334.76 is: 21,148.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,153.64 : 25,036.50 = 15,334.76 : x
  2. Step 2: Convert to fraction form
    18,153.64/25,036.50 = 15,334.76/x
  3. Step 3: Cross multiply
    18,153.64x = 25,036.50 × 15,334.76
  4. Step 4: Simplify right side
    18,153.64x = 383,928,718.74
  5. Step 5: Solve for x
    x = 383,928,718.74/18,153.64
  6. Step 6: Final answer
    x = 21,148.86

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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.