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Finding the Fourth Proportional to 15,114.94, 20,854.86 and 9,440.89

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Solution

The fourth proportional to 15,114.94, 20,854.86 and 9,440.89 is: 13,026.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,114.94 : 20,854.86 = 9,440.89 : x
  2. Step 2: Convert to fraction form
    15,114.94/20,854.86 = 9,440.89/x
  3. Step 3: Cross multiply
    15,114.94x = 20,854.86 × 9,440.89
  4. Step 4: Simplify right side
    15,114.94x = 196,888,439.23
  5. Step 5: Solve for x
    x = 196,888,439.23/15,114.94
  6. Step 6: Final answer
    x = 13,026.08

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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.