Home / 9,437.20-13,021.91-5,188.44

Finding the Fourth Proportional to 9,437.20, 13,021.91 and 5,188.44

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Solution

The fourth proportional to 9,437.20, 13,021.91 and 5,188.44 is: 7,159.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,437.20 : 13,021.91 = 5,188.44 : x
  2. Step 2: Convert to fraction form
    9,437.20/13,021.91 = 5,188.44/x
  3. Step 3: Cross multiply
    9,437.20x = 13,021.91 × 5,188.44
  4. Step 4: Simplify right side
    9,437.20x = 67,563,372.78
  5. Step 5: Solve for x
    x = 67,563,372.78/9,437.20
  6. Step 6: Final answer
    x = 7,159.26

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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.