Home / 9,219.04-12,718.99-5,440.31

Finding the Fourth Proportional to 9,219.04, 12,718.99 and 5,440.31

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Solution

The fourth proportional to 9,219.04, 12,718.99 and 5,440.31 is: 7,505.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,219.04 : 12,718.99 = 5,440.31 : x
  2. Step 2: Convert to fraction form
    9,219.04/12,718.99 = 5,440.31/x
  3. Step 3: Cross multiply
    9,219.04x = 12,718.99 × 5,440.31
  4. Step 4: Simplify right side
    9,219.04x = 69,195,310.93
  5. Step 5: Solve for x
    x = 69,195,310.93/9,219.04
  6. Step 6: Final answer
    x = 7,505.70

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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.