Home / 9,909.79-13,675.50-5,433.61

Finding the Fourth Proportional to 9,909.79, 13,675.50 and 5,433.61

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Solution

The fourth proportional to 9,909.79, 13,675.50 and 5,433.61 is: 7,498.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,909.79 : 13,675.50 = 5,433.61 : x
  2. Step 2: Convert to fraction form
    9,909.79/13,675.50 = 5,433.61/x
  3. Step 3: Cross multiply
    9,909.79x = 13,675.50 × 5,433.61
  4. Step 4: Simplify right side
    9,909.79x = 74,307,367.35
  5. Step 5: Solve for x
    x = 74,307,367.35/9,909.79
  6. Step 6: Final answer
    x = 7,498.38

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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.