Home / 10,959.34-15,120.21-6,179.62

Finding the Fourth Proportional to 10,959.34, 15,120.21 and 6,179.62

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Solution

The fourth proportional to 10,959.34, 15,120.21 and 6,179.62 is: 8,525.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,959.34 : 15,120.21 = 6,179.62 : x
  2. Step 2: Convert to fraction form
    10,959.34/15,120.21 = 6,179.62/x
  3. Step 3: Cross multiply
    10,959.34x = 15,120.21 × 6,179.62
  4. Step 4: Simplify right side
    10,959.34x = 93,437,152.12
  5. Step 5: Solve for x
    x = 93,437,152.12/10,959.34
  6. Step 6: Final answer
    x = 8,525.80

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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.