Home / 15,139.81-22,709.72-6,818.28

Finding the Fourth Proportional to 15,139.81, 22,709.72 and 6,818.28

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Solution

The fourth proportional to 15,139.81, 22,709.72 and 6,818.28 is: 10,227.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,139.81 : 22,709.72 = 6,818.28 : x
  2. Step 2: Convert to fraction form
    15,139.81/22,709.72 = 6,818.28/x
  3. Step 3: Cross multiply
    15,139.81x = 22,709.72 × 6,818.28
  4. Step 4: Simplify right side
    15,139.81x = 154,841,161.57
  5. Step 5: Solve for x
    x = 154,841,161.57/15,139.81
  6. Step 6: Final answer
    x = 10,227.42

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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.