Home / 13,576.10-18,750.57-10,815.62

Finding the Fourth Proportional to 13,576.10, 18,750.57 and 10,815.62

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Solution

The fourth proportional to 13,576.10, 18,750.57 and 10,815.62 is: 14,937.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,576.10 : 18,750.57 = 10,815.62 : x
  2. Step 2: Convert to fraction form
    13,576.10/18,750.57 = 10,815.62/x
  3. Step 3: Cross multiply
    13,576.10x = 18,750.57 × 10,815.62
  4. Step 4: Simplify right side
    13,576.10x = 202,799,039.90
  5. Step 5: Solve for x
    x = 202,799,039.90/13,576.10
  6. Step 6: Final answer
    x = 14,937.95

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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.