Home / 11,580.28-15,981.22-7,041.65

Finding the Fourth Proportional to 11,580.28, 15,981.22 and 7,041.65

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Solution

The fourth proportional to 11,580.28, 15,981.22 and 7,041.65 is: 9,717.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,580.28 : 15,981.22 = 7,041.65 : x
  2. Step 2: Convert to fraction form
    11,580.28/15,981.22 = 7,041.65/x
  3. Step 3: Cross multiply
    11,580.28x = 15,981.22 × 7,041.65
  4. Step 4: Simplify right side
    11,580.28x = 112,534,084.43
  5. Step 5: Solve for x
    x = 112,534,084.43/11,580.28
  6. Step 6: Final answer
    x = 9,717.74

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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.