Home / 12,582.57-18,806.07-10,988.79

Finding the Fourth Proportional to 12,582.57, 18,806.07 and 10,988.79

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Solution

The fourth proportional to 12,582.57, 18,806.07 and 10,988.79 is: 16,423.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,582.57 : 18,806.07 = 10,988.79 : x
  2. Step 2: Convert to fraction form
    12,582.57/18,806.07 = 10,988.79/x
  3. Step 3: Cross multiply
    12,582.57x = 18,806.07 × 10,988.79
  4. Step 4: Simplify right side
    12,582.57x = 206,655,953.96
  5. Step 5: Solve for x
    x = 206,655,953.96/12,582.57
  6. Step 6: Final answer
    x = 16,423.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.