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Finding the Fourth Proportional to 8,895, 12,275.12 and 5,358.36

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Solution

The fourth proportional to 8,895, 12,275.12 and 5,358.36 is: 7,394.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,895 : 12,275.12 = 5,358.36 : x
  2. Step 2: Convert to fraction form
    8,895/12,275.12 = 5,358.36/x
  3. Step 3: Cross multiply
    8,895x = 12,275.12 × 5,358.36
  4. Step 4: Simplify right side
    8,895x = 65,774,512.00
  5. Step 5: Solve for x
    x = 65,774,512.00/8,895
  6. Step 6: Final answer
    x = 7,394.55

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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.