Home / 13,393.88-18,465.98-10,995.08

Finding the Fourth Proportional to 13,393.88, 18,465.98 and 10,995.08

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Solution

The fourth proportional to 13,393.88, 18,465.98 and 10,995.08 is: 15,158.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,393.88 : 18,465.98 = 10,995.08 : x
  2. Step 2: Convert to fraction form
    13,393.88/18,465.98 = 10,995.08/x
  3. Step 3: Cross multiply
    13,393.88x = 18,465.98 × 10,995.08
  4. Step 4: Simplify right side
    13,393.88x = 203,034,927.38
  5. Step 5: Solve for x
    x = 203,034,927.38/13,393.88
  6. Step 6: Final answer
    x = 15,158.78

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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.