Home / 12,864.14-17,752.63-7,486.85

Finding the Fourth Proportional to 12,864.14, 17,752.63 and 7,486.85

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Solution

The fourth proportional to 12,864.14, 17,752.63 and 7,486.85 is: 10,331.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,864.14 : 17,752.63 = 7,486.85 : x
  2. Step 2: Convert to fraction form
    12,864.14/17,752.63 = 7,486.85/x
  3. Step 3: Cross multiply
    12,864.14x = 17,752.63 × 7,486.85
  4. Step 4: Simplify right side
    12,864.14x = 132,911,277.92
  5. Step 5: Solve for x
    x = 132,911,277.92/12,864.14
  6. Step 6: Final answer
    x = 10,331.92

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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.