Home / 15,765.60-21,756.06-8,595.24

Finding the Fourth Proportional to 15,765.60, 21,756.06 and 8,595.24

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Solution

The fourth proportional to 15,765.60, 21,756.06 and 8,595.24 is: 11,861.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,765.60 : 21,756.06 = 8,595.24 : x
  2. Step 2: Convert to fraction form
    15,765.60/21,756.06 = 8,595.24/x
  3. Step 3: Cross multiply
    15,765.60x = 21,756.06 × 8,595.24
  4. Step 4: Simplify right side
    15,765.60x = 186,998,557.15
  5. Step 5: Solve for x
    x = 186,998,557.15/15,765.60
  6. Step 6: Final answer
    x = 11,861.18

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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.