Home / 15,765.60-21,741.87-11,509.95

Finding the Fourth Proportional to 15,765.60, 21,741.87 and 11,509.95

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Solution

The fourth proportional to 15,765.60, 21,741.87 and 11,509.95 is: 15,873.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,765.60 : 21,741.87 = 11,509.95 : x
  2. Step 2: Convert to fraction form
    15,765.60/21,741.87 = 11,509.95/x
  3. Step 3: Cross multiply
    15,765.60x = 21,741.87 × 11,509.95
  4. Step 4: Simplify right side
    15,765.60x = 250,247,836.61
  5. Step 5: Solve for x
    x = 250,247,836.61/15,765.60
  6. Step 6: Final answer
    x = 15,873.03

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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.