Home / 19,437.28-26,823.20-10,939.36

Finding the Fourth Proportional to 19,437.28, 26,823.20 and 10,939.36

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Solution

The fourth proportional to 19,437.28, 26,823.20 and 10,939.36 is: 15,096.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,437.28 : 26,823.20 = 10,939.36 : x
  2. Step 2: Convert to fraction form
    19,437.28/26,823.20 = 10,939.36/x
  3. Step 3: Cross multiply
    19,437.28x = 26,823.20 × 10,939.36
  4. Step 4: Simplify right side
    19,437.28x = 293,428,641.15
  5. Step 5: Solve for x
    x = 293,428,641.15/19,437.28
  6. Step 6: Final answer
    x = 15,096.18

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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.