Home / 18,547.74-25,581.92-12,882.50

Finding the Fourth Proportional to 18,547.74, 25,581.92 and 12,882.50

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Solution

The fourth proportional to 18,547.74, 25,581.92 and 12,882.50 is: 17,768.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,547.74 : 25,581.92 = 12,882.50 : x
  2. Step 2: Convert to fraction form
    18,547.74/25,581.92 = 12,882.50/x
  3. Step 3: Cross multiply
    18,547.74x = 25,581.92 × 12,882.50
  4. Step 4: Simplify right side
    18,547.74x = 329,559,084.40
  5. Step 5: Solve for x
    x = 329,559,084.40/18,547.74
  6. Step 6: Final answer
    x = 17,768.15

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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.