Home / 13,073.11-18,040.30-7,407.74

Finding the Fourth Proportional to 13,073.11, 18,040.30 and 7,407.74

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Solution

The fourth proportional to 13,073.11, 18,040.30 and 7,407.74 is: 10,222.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,073.11 : 18,040.30 = 7,407.74 : x
  2. Step 2: Convert to fraction form
    13,073.11/18,040.30 = 7,407.74/x
  3. Step 3: Cross multiply
    13,073.11x = 18,040.30 × 7,407.74
  4. Step 4: Simplify right side
    13,073.11x = 133,637,851.92
  5. Step 5: Solve for x
    x = 133,637,851.92/13,073.11
  6. Step 6: Final answer
    x = 10,222.35

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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.