Home / 18,816.49-25,966.23-10,318.18

Finding the Fourth Proportional to 18,816.49, 25,966.23 and 10,318.18

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Solution

The fourth proportional to 18,816.49, 25,966.23 and 10,318.18 is: 14,238.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,816.49 : 25,966.23 = 10,318.18 : x
  2. Step 2: Convert to fraction form
    18,816.49/25,966.23 = 10,318.18/x
  3. Step 3: Cross multiply
    18,816.49x = 25,966.23 × 10,318.18
  4. Step 4: Simplify right side
    18,816.49x = 267,924,235.06
  5. Step 5: Solve for x
    x = 267,924,235.06/18,816.49
  6. Step 6: Final answer
    x = 14,238.80

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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.