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Finding the Fourth Proportional to 12,802.80, 19,195.95 and 8,842.92

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Solution

The fourth proportional to 12,802.80, 19,195.95 and 8,842.92 is: 13,258.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,802.80 : 19,195.95 = 8,842.92 : x
  2. Step 2: Convert to fraction form
    12,802.80/19,195.95 = 8,842.92/x
  3. Step 3: Cross multiply
    12,802.80x = 19,195.95 × 8,842.92
  4. Step 4: Simplify right side
    12,802.80x = 169,748,250.17
  5. Step 5: Solve for x
    x = 169,748,250.17/12,802.80
  6. Step 6: Final answer
    x = 13,258.68

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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.