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Finding the Fourth Proportional to 8,809.59, 13,210.19 and 5,112.96

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Solution

The fourth proportional to 8,809.59, 13,210.19 and 5,112.96 is: 7,667.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,809.59 : 13,210.19 = 5,112.96 : x
  2. Step 2: Convert to fraction form
    8,809.59/13,210.19 = 5,112.96/x
  3. Step 3: Cross multiply
    8,809.59x = 13,210.19 × 5,112.96
  4. Step 4: Simplify right side
    8,809.59x = 67,543,117.13
  5. Step 5: Solve for x
    x = 67,543,117.13/8,809.59
  6. Step 6: Final answer
    x = 7,667.00

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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.