Home / 18,581.40-25,643.52-12,282.84

Finding the Fourth Proportional to 18,581.40, 25,643.52 and 12,282.84

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Solution

The fourth proportional to 18,581.40, 25,643.52 and 12,282.84 is: 16,951.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,581.40 : 25,643.52 = 12,282.84 : x
  2. Step 2: Convert to fraction form
    18,581.40/25,643.52 = 12,282.84/x
  3. Step 3: Cross multiply
    18,581.40x = 25,643.52 × 12,282.84
  4. Step 4: Simplify right side
    18,581.40x = 314,975,253.20
  5. Step 5: Solve for x
    x = 314,975,253.20/18,581.40
  6. Step 6: Final answer
    x = 16,951.10

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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.