Home / 9,945.20-14,916.60-5,787.56

Finding the Fourth Proportional to 9,945.20, 14,916.60 and 5,787.56

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Solution

The fourth proportional to 9,945.20, 14,916.60 and 5,787.56 is: 8,680.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,945.20 : 14,916.60 = 5,787.56 : x
  2. Step 2: Convert to fraction form
    9,945.20/14,916.60 = 5,787.56/x
  3. Step 3: Cross multiply
    9,945.20x = 14,916.60 × 5,787.56
  4. Step 4: Simplify right side
    9,945.20x = 86,330,717.50
  5. Step 5: Solve for x
    x = 86,330,717.50/9,945.20
  6. Step 6: Final answer
    x = 8,680.64

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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.