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Finding the Fourth Proportional to 8,853.63, 13,288.65 and 7,065.76

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Solution

The fourth proportional to 8,853.63, 13,288.65 and 7,065.76 is: 10,605.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,853.63 : 13,288.65 = 7,065.76 : x
  2. Step 2: Convert to fraction form
    8,853.63/13,288.65 = 7,065.76/x
  3. Step 3: Cross multiply
    8,853.63x = 13,288.65 × 7,065.76
  4. Step 4: Simplify right side
    8,853.63x = 93,894,411.62
  5. Step 5: Solve for x
    x = 93,894,411.62/8,853.63
  6. Step 6: Final answer
    x = 10,605.19

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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.