Home / 12,657.32-17,463.60-7,279.47

Finding the Fourth Proportional to 12,657.32, 17,463.60 and 7,279.47

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Solution

The fourth proportional to 12,657.32, 17,463.60 and 7,279.47 is: 10,043.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,657.32 : 17,463.60 = 7,279.47 : x
  2. Step 2: Convert to fraction form
    12,657.32/17,463.60 = 7,279.47/x
  3. Step 3: Cross multiply
    12,657.32x = 17,463.60 × 7,279.47
  4. Step 4: Simplify right side
    12,657.32x = 127,125,659.51
  5. Step 5: Solve for x
    x = 127,125,659.51/12,657.32
  6. Step 6: Final answer
    x = 10,043.65

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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.