Home / 12,510.27-18,760.65-5,110.76

Finding the Fourth Proportional to 12,510.27, 18,760.65 and 5,110.76

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Solution

The fourth proportional to 12,510.27, 18,760.65 and 5,110.76 is: 7,664.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,510.27 : 18,760.65 = 5,110.76 : x
  2. Step 2: Convert to fraction form
    12,510.27/18,760.65 = 5,110.76/x
  3. Step 3: Cross multiply
    12,510.27x = 18,760.65 × 5,110.76
  4. Step 4: Simplify right side
    12,510.27x = 95,881,085.79
  5. Step 5: Solve for x
    x = 95,881,085.79/12,510.27
  6. Step 6: Final answer
    x = 7,664.19

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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.