Home / 11,580.58-15,981.19-6,275.35

Finding the Fourth Proportional to 11,580.58, 15,981.19 and 6,275.35

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Solution

The fourth proportional to 11,580.58, 15,981.19 and 6,275.35 is: 8,659.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,580.58 : 15,981.19 = 6,275.35 : x
  2. Step 2: Convert to fraction form
    11,580.58/15,981.19 = 6,275.35/x
  3. Step 3: Cross multiply
    11,580.58x = 15,981.19 × 6,275.35
  4. Step 4: Simplify right side
    11,580.58x = 100,287,560.67
  5. Step 5: Solve for x
    x = 100,287,560.67/11,580.58
  6. Step 6: Final answer
    x = 8,659.98

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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.