Home / 11,277.83-15,547.16-7,910.21

Finding the Fourth Proportional to 11,277.83, 15,547.16 and 7,910.21

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Solution

The fourth proportional to 11,277.83, 15,547.16 and 7,910.21 is: 10,904.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,277.83 : 15,547.16 = 7,910.21 : x
  2. Step 2: Convert to fraction form
    11,277.83/15,547.16 = 7,910.21/x
  3. Step 3: Cross multiply
    11,277.83x = 15,547.16 × 7,910.21
  4. Step 4: Simplify right side
    11,277.83x = 122,981,359.15
  5. Step 5: Solve for x
    x = 122,981,359.15/11,277.83
  6. Step 6: Final answer
    x = 10,904.70

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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.