Home / 15,470.94-21,350.07-8,397.48

Finding the Fourth Proportional to 15,470.94, 21,350.07 and 8,397.48

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Solution

The fourth proportional to 15,470.94, 21,350.07 and 8,397.48 is: 11,588.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,470.94 : 21,350.07 = 8,397.48 : x
  2. Step 2: Convert to fraction form
    15,470.94/21,350.07 = 8,397.48/x
  3. Step 3: Cross multiply
    15,470.94x = 21,350.07 × 8,397.48
  4. Step 4: Simplify right side
    15,470.94x = 179,286,785.82
  5. Step 5: Solve for x
    x = 179,286,785.82/15,470.94
  6. Step 6: Final answer
    x = 11,588.62

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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.