Home / 12,577.73-17,360.40-7,271.78

Finding the Fourth Proportional to 12,577.73, 17,360.40 and 7,271.78

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Solution

The fourth proportional to 12,577.73, 17,360.40 and 7,271.78 is: 10,036.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,577.73 : 17,360.40 = 7,271.78 : x
  2. Step 2: Convert to fraction form
    12,577.73/17,360.40 = 7,271.78/x
  3. Step 3: Cross multiply
    12,577.73x = 17,360.40 × 7,271.78
  4. Step 4: Simplify right side
    12,577.73x = 126,241,009.51
  5. Step 5: Solve for x
    x = 126,241,009.51/12,577.73
  6. Step 6: Final answer
    x = 10,036.87

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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.