Home / 11,180.90-15,434.35-7,547.66

Finding the Fourth Proportional to 11,180.90, 15,434.35 and 7,547.66

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Solution

The fourth proportional to 11,180.90, 15,434.35 and 7,547.66 is: 10,418.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,180.90 : 15,434.35 = 7,547.66 : x
  2. Step 2: Convert to fraction form
    11,180.90/15,434.35 = 7,547.66/x
  3. Step 3: Cross multiply
    11,180.90x = 15,434.35 × 7,547.66
  4. Step 4: Simplify right side
    11,180.90x = 116,493,226.12
  5. Step 5: Solve for x
    x = 116,493,226.12/11,180.90
  6. Step 6: Final answer
    x = 10,418.95

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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.