Home / 12,718.24-19,052.76-7,154.68

Finding the Fourth Proportional to 12,718.24, 19,052.76 and 7,154.68

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Solution

The fourth proportional to 12,718.24, 19,052.76 and 7,154.68 is: 10,718.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,718.24 : 19,052.76 = 7,154.68 : x
  2. Step 2: Convert to fraction form
    12,718.24/19,052.76 = 7,154.68/x
  3. Step 3: Cross multiply
    12,718.24x = 19,052.76 × 7,154.68
  4. Step 4: Simplify right side
    12,718.24x = 136,316,400.92
  5. Step 5: Solve for x
    x = 136,316,400.92/12,718.24
  6. Step 6: Final answer
    x = 10,718.18

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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.