Home / 12,719.13-17,557.07-9,569.85

Finding the Fourth Proportional to 12,719.13, 17,557.07 and 9,569.85

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Solution

The fourth proportional to 12,719.13, 17,557.07 and 9,569.85 is: 13,209.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,719.13 : 17,557.07 = 9,569.85 : x
  2. Step 2: Convert to fraction form
    12,719.13/17,557.07 = 9,569.85/x
  3. Step 3: Cross multiply
    12,719.13x = 17,557.07 × 9,569.85
  4. Step 4: Simplify right side
    12,719.13x = 168,018,478.49
  5. Step 5: Solve for x
    x = 168,018,478.49/12,719.13
  6. Step 6: Final answer
    x = 13,209.90

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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.