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Finding the Fourth Proportional to 10,870.92, 15,001 and 6,394.84

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Solution

The fourth proportional to 10,870.92, 15,001 and 6,394.84 is: 8,824.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,870.92 : 15,001 = 6,394.84 : x
  2. Step 2: Convert to fraction form
    10,870.92/15,001 = 6,394.84/x
  3. Step 3: Cross multiply
    10,870.92x = 15,001 × 6,394.84
  4. Step 4: Simplify right side
    10,870.92x = 95,928,994.84
  5. Step 5: Solve for x
    x = 95,928,994.84/10,870.92
  6. Step 6: Final answer
    x = 8,824.37

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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.