Home / 10,065.15-13,888.80-5,589.09

Finding the Fourth Proportional to 10,065.15, 13,888.80 and 5,589.09

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Solution

The fourth proportional to 10,065.15, 13,888.80 and 5,589.09 is: 7,712.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,065.15 : 13,888.80 = 5,589.09 : x
  2. Step 2: Convert to fraction form
    10,065.15/13,888.80 = 5,589.09/x
  3. Step 3: Cross multiply
    10,065.15x = 13,888.80 × 5,589.09
  4. Step 4: Simplify right side
    10,065.15x = 77,625,753.19
  5. Step 5: Solve for x
    x = 77,625,753.19/10,065.15
  6. Step 6: Final answer
    x = 7,712.33

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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.