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Finding the Fourth Proportional to 8,731.51, 13,097.51 and 2,888.13

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Solution

The fourth proportional to 8,731.51, 13,097.51 and 2,888.13 is: 4,332.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,731.51 : 13,097.51 = 2,888.13 : x
  2. Step 2: Convert to fraction form
    8,731.51/13,097.51 = 2,888.13/x
  3. Step 3: Cross multiply
    8,731.51x = 13,097.51 × 2,888.13
  4. Step 4: Simplify right side
    8,731.51x = 37,827,311.56
  5. Step 5: Solve for x
    x = 37,827,311.56/8,731.51
  6. Step 6: Final answer
    x = 4,332.28

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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.