Home / 13,332.50-18,401.09-10,140.66

Finding the Fourth Proportional to 13,332.50, 18,401.09 and 10,140.66

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Solution

The fourth proportional to 13,332.50, 18,401.09 and 10,140.66 is: 13,995.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,332.50 : 18,401.09 = 10,140.66 : x
  2. Step 2: Convert to fraction form
    13,332.50/18,401.09 = 10,140.66/x
  3. Step 3: Cross multiply
    13,332.50x = 18,401.09 × 10,140.66
  4. Step 4: Simplify right side
    13,332.50x = 186,599,146.62
  5. Step 5: Solve for x
    x = 186,599,146.62/13,332.50
  6. Step 6: Final answer
    x = 13,995.82

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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.