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Finding the Fourth Proportional to 8,752.08, 13,035.28 and 8,709.68

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Solution

The fourth proportional to 8,752.08, 13,035.28 and 8,709.68 is: 12,972.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,752.08 : 13,035.28 = 8,709.68 : x
  2. Step 2: Convert to fraction form
    8,752.08/13,035.28 = 8,709.68/x
  3. Step 3: Cross multiply
    8,752.08x = 13,035.28 × 8,709.68
  4. Step 4: Simplify right side
    8,752.08x = 113,533,117.51
  5. Step 5: Solve for x
    x = 113,533,117.51/8,752.08
  6. Step 6: Final answer
    x = 12,972.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.