Home / 10,947.60-16,411.80-6,560.40

Finding the Fourth Proportional to 10,947.60, 16,411.80 and 6,560.40

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Solution

The fourth proportional to 10,947.60, 16,411.80 and 6,560.40 is: 9,834.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,947.60 : 16,411.80 = 6,560.40 : x
  2. Step 2: Convert to fraction form
    10,947.60/16,411.80 = 6,560.40/x
  3. Step 3: Cross multiply
    10,947.60x = 16,411.80 × 6,560.40
  4. Step 4: Simplify right side
    10,947.60x = 107,667,972.72
  5. Step 5: Solve for x
    x = 107,667,972.72/10,947.60
  6. Step 6: Final answer
    x = 9,834.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.