Home / 9,888.11-13,645.35-5,411.85

Finding the Fourth Proportional to 9,888.11, 13,645.35 and 5,411.85

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Solution

The fourth proportional to 9,888.11, 13,645.35 and 5,411.85 is: 7,468.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,888.11 : 13,645.35 = 5,411.85 : x
  2. Step 2: Convert to fraction form
    9,888.11/13,645.35 = 5,411.85/x
  3. Step 3: Cross multiply
    9,888.11x = 13,645.35 × 5,411.85
  4. Step 4: Simplify right side
    9,888.11x = 73,846,587.40
  5. Step 5: Solve for x
    x = 73,846,587.40/9,888.11
  6. Step 6: Final answer
    x = 7,468.22

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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.