Home / 9,931.45-13,707.58-6,869.61

Finding the Fourth Proportional to 9,931.45, 13,707.58 and 6,869.61

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Solution

The fourth proportional to 9,931.45, 13,707.58 and 6,869.61 is: 9,481.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,931.45 : 13,707.58 = 6,869.61 : x
  2. Step 2: Convert to fraction form
    9,931.45/13,707.58 = 6,869.61/x
  3. Step 3: Cross multiply
    9,931.45x = 13,707.58 × 6,869.61
  4. Step 4: Simplify right side
    9,931.45x = 94,165,685.83
  5. Step 5: Solve for x
    x = 94,165,685.83/9,931.45
  6. Step 6: Final answer
    x = 9,481.57

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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.