Home / 12,559.68-17,331.05-7,256.21

Finding the Fourth Proportional to 12,559.68, 17,331.05 and 7,256.21

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Solution

The fourth proportional to 12,559.68, 17,331.05 and 7,256.21 is: 10,012.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,559.68 : 17,331.05 = 7,256.21 : x
  2. Step 2: Convert to fraction form
    12,559.68/17,331.05 = 7,256.21/x
  3. Step 3: Cross multiply
    12,559.68x = 17,331.05 × 7,256.21
  4. Step 4: Simplify right side
    12,559.68x = 125,757,669.81
  5. Step 5: Solve for x
    x = 125,757,669.81/12,559.68
  6. Step 6: Final answer
    x = 10,012.81

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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.