Home / 13,331.73-18,400.05-10,139.91

Finding the Fourth Proportional to 13,331.73, 18,400.05 and 10,139.91

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Solution

The fourth proportional to 13,331.73, 18,400.05 and 10,139.91 is: 13,994.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,331.73 : 18,400.05 = 10,139.91 : x
  2. Step 2: Convert to fraction form
    13,331.73/18,400.05 = 10,139.91/x
  3. Step 3: Cross multiply
    13,331.73x = 18,400.05 × 10,139.91
  4. Step 4: Simplify right side
    13,331.73x = 186,574,851.00
  5. Step 5: Solve for x
    x = 186,574,851.00/13,331.73
  6. Step 6: Final answer
    x = 13,994.80

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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.