Home / 13,857.60-19,122.88-8,552.92

Finding the Fourth Proportional to 13,857.60, 19,122.88 and 8,552.92

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Solution

The fourth proportional to 13,857.60, 19,122.88 and 8,552.92 is: 11,802.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,857.60 : 19,122.88 = 8,552.92 : x
  2. Step 2: Convert to fraction form
    13,857.60/19,122.88 = 8,552.92/x
  3. Step 3: Cross multiply
    13,857.60x = 19,122.88 × 8,552.92
  4. Step 4: Simplify right side
    13,857.60x = 163,556,462.81
  5. Step 5: Solve for x
    x = 163,556,462.81/13,857.60
  6. Step 6: Final answer
    x = 11,802.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.