Home / 18,474.16-25,490.04-10,515.76

Finding the Fourth Proportional to 18,474.16, 25,490.04 and 10,515.76

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Solution

The fourth proportional to 18,474.16, 25,490.04 and 10,515.76 is: 14,509.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,474.16 : 25,490.04 = 10,515.76 : x
  2. Step 2: Convert to fraction form
    18,474.16/25,490.04 = 10,515.76/x
  3. Step 3: Cross multiply
    18,474.16x = 25,490.04 × 10,515.76
  4. Step 4: Simplify right side
    18,474.16x = 268,047,143.03
  5. Step 5: Solve for x
    x = 268,047,143.03/18,474.16
  6. Step 6: Final answer
    x = 14,509.30

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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.