Home / 13,537.61-20,299.97-7,916.88

Finding the Fourth Proportional to 13,537.61, 20,299.97 and 7,916.88

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Solution

The fourth proportional to 13,537.61, 20,299.97 and 7,916.88 is: 11,871.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,537.61 : 20,299.97 = 7,916.88 : x
  2. Step 2: Convert to fraction form
    13,537.61/20,299.97 = 7,916.88/x
  3. Step 3: Cross multiply
    13,537.61x = 20,299.97 × 7,916.88
  4. Step 4: Simplify right side
    13,537.61x = 160,712,386.91
  5. Step 5: Solve for x
    x = 160,712,386.91/13,537.61
  6. Step 6: Final answer
    x = 11,871.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.