Home / 11,332.79-15,634.98-8,355.72

Finding the Fourth Proportional to 11,332.79, 15,634.98 and 8,355.72

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Solution

The fourth proportional to 11,332.79, 15,634.98 and 8,355.72 is: 11,527.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,332.79 : 15,634.98 = 8,355.72 : x
  2. Step 2: Convert to fraction form
    11,332.79/15,634.98 = 8,355.72/x
  3. Step 3: Cross multiply
    11,332.79x = 15,634.98 × 8,355.72
  4. Step 4: Simplify right side
    11,332.79x = 130,641,515.09
  5. Step 5: Solve for x
    x = 130,641,515.09/11,332.79
  6. Step 6: Final answer
    x = 11,527.75

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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.