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Finding the Fourth Proportional to 8,856.59, 12,208.74 and 7,281.95

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Solution

The fourth proportional to 8,856.59, 12,208.74 and 7,281.95 is: 10,038.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,856.59 : 12,208.74 = 7,281.95 : x
  2. Step 2: Convert to fraction form
    8,856.59/12,208.74 = 7,281.95/x
  3. Step 3: Cross multiply
    8,856.59x = 12,208.74 × 7,281.95
  4. Step 4: Simplify right side
    8,856.59x = 88,903,434.24
  5. Step 5: Solve for x
    x = 88,903,434.24/8,856.59
  6. Step 6: Final answer
    x = 10,038.11

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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.