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Finding the Fourth Proportional to 19,267.71, 28,901.15 and 8,879.46

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Solution

The fourth proportional to 19,267.71, 28,901.15 and 8,879.46 is: 13,319.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,267.71 : 28,901.15 = 8,879.46 : x
  2. Step 2: Convert to fraction form
    19,267.71/28,901.15 = 8,879.46/x
  3. Step 3: Cross multiply
    19,267.71x = 28,901.15 × 8,879.46
  4. Step 4: Simplify right side
    19,267.71x = 256,626,535.85
  5. Step 5: Solve for x
    x = 256,626,535.85/19,267.71
  6. Step 6: Final answer
    x = 13,319.00

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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.