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Finding the Fourth Proportional to 8,646.96, 11,932.34 and 4,870.74

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Solution

The fourth proportional to 8,646.96, 11,932.34 and 4,870.74 is: 6,721.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,646.96 : 11,932.34 = 4,870.74 : x
  2. Step 2: Convert to fraction form
    8,646.96/11,932.34 = 4,870.74/x
  3. Step 3: Cross multiply
    8,646.96x = 11,932.34 × 4,870.74
  4. Step 4: Simplify right side
    8,646.96x = 58,119,325.73
  5. Step 5: Solve for x
    x = 58,119,325.73/8,646.96
  6. Step 6: Final answer
    x = 6,721.36

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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.