Home / 19,047.18-28,575.34-7,947.70

Finding the Fourth Proportional to 19,047.18, 28,575.34 and 7,947.70

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Solution

The fourth proportional to 19,047.18, 28,575.34 and 7,947.70 is: 11,923.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,047.18 : 28,575.34 = 7,947.70 : x
  2. Step 2: Convert to fraction form
    19,047.18/28,575.34 = 7,947.70/x
  3. Step 3: Cross multiply
    19,047.18x = 28,575.34 × 7,947.70
  4. Step 4: Simplify right side
    19,047.18x = 227,108,138.41
  5. Step 5: Solve for x
    x = 227,108,138.41/19,047.18
  6. Step 6: Final answer
    x = 11,923.45

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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.