Home / 12,722.46-17,558.19-7,345.07

Finding the Fourth Proportional to 12,722.46, 17,558.19 and 7,345.07

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Solution

The fourth proportional to 12,722.46, 17,558.19 and 7,345.07 is: 10,136.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,722.46 : 17,558.19 = 7,345.07 : x
  2. Step 2: Convert to fraction form
    12,722.46/17,558.19 = 7,345.07/x
  3. Step 3: Cross multiply
    12,722.46x = 17,558.19 × 7,345.07
  4. Step 4: Simplify right side
    12,722.46x = 128,966,097.90
  5. Step 5: Solve for x
    x = 128,966,097.90/12,722.46
  6. Step 6: Final answer
    x = 10,136.88

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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.