Home / 8,956.87-12,360.54-5,180.08

Finding the Fourth Proportional to 8,956.87, 12,360.54 and 5,180.08

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Solution

The fourth proportional to 8,956.87, 12,360.54 and 5,180.08 is: 7,148.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,956.87 : 12,360.54 = 5,180.08 : x
  2. Step 2: Convert to fraction form
    8,956.87/12,360.54 = 5,180.08/x
  3. Step 3: Cross multiply
    8,956.87x = 12,360.54 × 5,180.08
  4. Step 4: Simplify right side
    8,956.87x = 64,028,586.04
  5. Step 5: Solve for x
    x = 64,028,586.04/8,956.87
  6. Step 6: Final answer
    x = 7,148.54

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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.