Home / 11,319.70-15,636.14-9,437.44

Finding the Fourth Proportional to 11,319.70, 15,636.14 and 9,437.44

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Solution

The fourth proportional to 11,319.70, 15,636.14 and 9,437.44 is: 13,036.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,319.70 : 15,636.14 = 9,437.44 : x
  2. Step 2: Convert to fraction form
    11,319.70/15,636.14 = 9,437.44/x
  3. Step 3: Cross multiply
    11,319.70x = 15,636.14 × 9,437.44
  4. Step 4: Simplify right side
    11,319.70x = 147,565,078.49
  5. Step 5: Solve for x
    x = 147,565,078.49/11,319.70
  6. Step 6: Final answer
    x = 13,036.14

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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.