Home / 10,179.30-15,256.80-5,246.40

Finding the Fourth Proportional to 10,179.30, 15,256.80 and 5,246.40

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Solution

The fourth proportional to 10,179.30, 15,256.80 and 5,246.40 is: 7,863.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,179.30 : 15,256.80 = 5,246.40 : x
  2. Step 2: Convert to fraction form
    10,179.30/15,256.80 = 5,246.40/x
  3. Step 3: Cross multiply
    10,179.30x = 15,256.80 × 5,246.40
  4. Step 4: Simplify right side
    10,179.30x = 80,043,275.52
  5. Step 5: Solve for x
    x = 80,043,275.52/10,179.30
  6. Step 6: Final answer
    x = 7,863.34

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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.