Home / 9,947.60-14,921.40-8,068.40

Finding the Fourth Proportional to 9,947.60, 14,921.40 and 8,068.40

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Solution

The fourth proportional to 9,947.60, 14,921.40 and 8,068.40 is: 12,102.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,947.60 : 14,921.40 = 8,068.40 : x
  2. Step 2: Convert to fraction form
    9,947.60/14,921.40 = 8,068.40/x
  3. Step 3: Cross multiply
    9,947.60x = 14,921.40 × 8,068.40
  4. Step 4: Simplify right side
    9,947.60x = 120,391,823.76
  5. Step 5: Solve for x
    x = 120,391,823.76/9,947.60
  6. Step 6: Final answer
    x = 12,102.60

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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.