Home / 12,561.89-17,331.17-7,254.77

Finding the Fourth Proportional to 12,561.89, 17,331.17 and 7,254.77

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Solution

The fourth proportional to 12,561.89, 17,331.17 and 7,254.77 is: 10,009.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,561.89 : 17,331.17 = 7,254.77 : x
  2. Step 2: Convert to fraction form
    12,561.89/17,331.17 = 7,254.77/x
  3. Step 3: Cross multiply
    12,561.89x = 17,331.17 × 7,254.77
  4. Step 4: Simplify right side
    12,561.89x = 125,733,529.25
  5. Step 5: Solve for x
    x = 125,733,529.25/12,561.89
  6. Step 6: Final answer
    x = 10,009.13

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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.