Home / 10,056.20-15,084.30-5,390.60

Finding the Fourth Proportional to 10,056.20, 15,084.30 and 5,390.60

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Solution

The fourth proportional to 10,056.20, 15,084.30 and 5,390.60 is: 8,085.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,056.20 : 15,084.30 = 5,390.60 : x
  2. Step 2: Convert to fraction form
    10,056.20/15,084.30 = 5,390.60/x
  3. Step 3: Cross multiply
    10,056.20x = 15,084.30 × 5,390.60
  4. Step 4: Simplify right side
    10,056.20x = 81,313,427.58
  5. Step 5: Solve for x
    x = 81,313,427.58/10,056.20
  6. Step 6: Final answer
    x = 8,085.90

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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.