Home / 8,891.07-12,275.45-5,705.56

Finding the Fourth Proportional to 8,891.07, 12,275.45 and 5,705.56

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Solution

The fourth proportional to 8,891.07, 12,275.45 and 5,705.56 is: 7,877.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,891.07 : 12,275.45 = 5,705.56 : x
  2. Step 2: Convert to fraction form
    8,891.07/12,275.45 = 5,705.56/x
  3. Step 3: Cross multiply
    8,891.07x = 12,275.45 × 5,705.56
  4. Step 4: Simplify right side
    8,891.07x = 70,038,359.24
  5. Step 5: Solve for x
    x = 70,038,359.24/8,891.07
  6. Step 6: Final answer
    x = 7,877.39

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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.