Home / 13,537.80-20,306.90-4,772.79

Finding the Fourth Proportional to 13,537.80, 20,306.90 and 4,772.79

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Solution

The fourth proportional to 13,537.80, 20,306.90 and 4,772.79 is: 7,159.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,537.80 : 20,306.90 = 4,772.79 : x
  2. Step 2: Convert to fraction form
    13,537.80/20,306.90 = 4,772.79/x
  3. Step 3: Cross multiply
    13,537.80x = 20,306.90 × 4,772.79
  4. Step 4: Simplify right side
    13,537.80x = 96,920,581.18
  5. Step 5: Solve for x
    x = 96,920,581.18/13,537.80
  6. Step 6: Final answer
    x = 7,159.26

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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.