Home / 15,184.43-20,954.88-8,470.01

Finding the Fourth Proportional to 15,184.43, 20,954.88 and 8,470.01

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Solution

The fourth proportional to 15,184.43, 20,954.88 and 8,470.01 is: 11,688.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,184.43 : 20,954.88 = 8,470.01 : x
  2. Step 2: Convert to fraction form
    15,184.43/20,954.88 = 8,470.01/x
  3. Step 3: Cross multiply
    15,184.43x = 20,954.88 × 8,470.01
  4. Step 4: Simplify right side
    15,184.43x = 177,487,938.37
  5. Step 5: Solve for x
    x = 177,487,938.37/15,184.43
  6. Step 6: Final answer
    x = 11,688.82

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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.