Home / 8,856.34-12,221.75-4,877.45

Finding the Fourth Proportional to 8,856.34, 12,221.75 and 4,877.45

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Solution

The fourth proportional to 8,856.34, 12,221.75 and 4,877.45 is: 6,730.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,856.34 : 12,221.75 = 4,877.45 : x
  2. Step 2: Convert to fraction form
    8,856.34/12,221.75 = 4,877.45/x
  3. Step 3: Cross multiply
    8,856.34x = 12,221.75 × 4,877.45
  4. Step 4: Simplify right side
    8,856.34x = 59,610,971.45
  5. Step 5: Solve for x
    x = 59,610,971.45/8,856.34
  6. Step 6: Final answer
    x = 6,730.88

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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.