Home / 19,247.28-26,555.20-11,289.84

Finding the Fourth Proportional to 19,247.28, 26,555.20 and 11,289.84

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Solution

The fourth proportional to 19,247.28, 26,555.20 and 11,289.84 is: 15,576.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,247.28 : 26,555.20 = 11,289.84 : x
  2. Step 2: Convert to fraction form
    19,247.28/26,555.20 = 11,289.84/x
  3. Step 3: Cross multiply
    19,247.28x = 26,555.20 × 11,289.84
  4. Step 4: Simplify right side
    19,247.28x = 299,803,959.17
  5. Step 5: Solve for x
    x = 299,803,959.17/19,247.28
  6. Step 6: Final answer
    x = 15,576.43

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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.