Home / 15,317.67-21,142.76-9,267.89

Finding the Fourth Proportional to 15,317.67, 21,142.76 and 9,267.89

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Solution

The fourth proportional to 15,317.67, 21,142.76 and 9,267.89 is: 12,792.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,317.67 : 21,142.76 = 9,267.89 : x
  2. Step 2: Convert to fraction form
    15,317.67/21,142.76 = 9,267.89/x
  3. Step 3: Cross multiply
    15,317.67x = 21,142.76 × 9,267.89
  4. Step 4: Simplify right side
    15,317.67x = 195,948,780.49
  5. Step 5: Solve for x
    x = 195,948,780.49/15,317.67
  6. Step 6: Final answer
    x = 12,792.34

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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.