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Finding the Fourth Proportional to 11,888.04, 17,820.30 and 5,637

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Solution

The fourth proportional to 11,888.04, 17,820.30 and 5,637 is: 8,449.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,888.04 : 17,820.30 = 5,637 : x
  2. Step 2: Convert to fraction form
    11,888.04/17,820.30 = 5,637/x
  3. Step 3: Cross multiply
    11,888.04x = 17,820.30 × 5,637
  4. Step 4: Simplify right side
    11,888.04x = 100,453,031.10
  5. Step 5: Solve for x
    x = 100,453,031.10/11,888.04
  6. Step 6: Final answer
    x = 8,449.92

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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.