Home / 11,955.28-17,925.22-5,715.15

Finding the Fourth Proportional to 11,955.28, 17,925.22 and 5,715.15

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Solution

The fourth proportional to 11,955.28, 17,925.22 and 5,715.15 is: 8,569.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,955.28 : 17,925.22 = 5,715.15 : x
  2. Step 2: Convert to fraction form
    11,955.28/17,925.22 = 5,715.15/x
  3. Step 3: Cross multiply
    11,955.28x = 17,925.22 × 5,715.15
  4. Step 4: Simplify right side
    11,955.28x = 102,445,335.37
  5. Step 5: Solve for x
    x = 102,445,335.37/11,955.28
  6. Step 6: Final answer
    x = 8,569.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.