Home / 18,732.70-25,856.69-10,780.53

Finding the Fourth Proportional to 18,732.70, 25,856.69 and 10,780.53

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Solution

The fourth proportional to 18,732.70, 25,856.69 and 10,780.53 is: 14,880.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,732.70 : 25,856.69 = 10,780.53 : x
  2. Step 2: Convert to fraction form
    18,732.70/25,856.69 = 10,780.53/x
  3. Step 3: Cross multiply
    18,732.70x = 25,856.69 × 10,780.53
  4. Step 4: Simplify right side
    18,732.70x = 278,748,671.38
  5. Step 5: Solve for x
    x = 278,748,671.38/18,732.70
  6. Step 6: Final answer
    x = 14,880.32

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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.