Home / 12,401.72-18,687.84-10,258.46

Finding the Fourth Proportional to 12,401.72, 18,687.84 and 10,258.46

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Solution

The fourth proportional to 12,401.72, 18,687.84 and 10,258.46 is: 15,458.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,401.72 : 18,687.84 = 10,258.46 : x
  2. Step 2: Convert to fraction form
    12,401.72/18,687.84 = 10,258.46/x
  3. Step 3: Cross multiply
    12,401.72x = 18,687.84 × 10,258.46
  4. Step 4: Simplify right side
    12,401.72x = 191,708,459.13
  5. Step 5: Solve for x
    x = 191,708,459.13/12,401.72
  6. Step 6: Final answer
    x = 15,458.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.