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Finding the Fourth Proportional to 13,338, 18,407.52 and 7,750.08

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Solution

The fourth proportional to 13,338, 18,407.52 and 7,750.08 is: 10,695.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,338 : 18,407.52 = 7,750.08 : x
  2. Step 2: Convert to fraction form
    13,338/18,407.52 = 7,750.08/x
  3. Step 3: Cross multiply
    13,338x = 18,407.52 × 7,750.08
  4. Step 4: Simplify right side
    13,338x = 142,659,752.60
  5. Step 5: Solve for x
    x = 142,659,752.60/13,338
  6. Step 6: Final answer
    x = 10,695.74

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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.