Home / 12,444.76-17,166.28-7,725.68

Finding the Fourth Proportional to 12,444.76, 17,166.28 and 7,725.68

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Solution

The fourth proportional to 12,444.76, 17,166.28 and 7,725.68 is: 10,656.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,444.76 : 17,166.28 = 7,725.68 : x
  2. Step 2: Convert to fraction form
    12,444.76/17,166.28 = 7,725.68/x
  3. Step 3: Cross multiply
    12,444.76x = 17,166.28 × 7,725.68
  4. Step 4: Simplify right side
    12,444.76x = 132,621,186.07
  5. Step 5: Solve for x
    x = 132,621,186.07/12,444.76
  6. Step 6: Final answer
    x = 10,656.79

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Half scale
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Double scale
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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.