Home / 11,319.60-15,636-9,437.34

Finding the Fourth Proportional to 11,319.60, 15,636 and 9,437.34

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Solution

The fourth proportional to 11,319.60, 15,636 and 9,437.34 is: 13,035.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,319.60 : 15,636 = 9,437.34 : x
  2. Step 2: Convert to fraction form
    11,319.60/15,636 = 9,437.34/x
  3. Step 3: Cross multiply
    11,319.60x = 15,636 × 9,437.34
  4. Step 4: Simplify right side
    11,319.60x = 147,562,248.24
  5. Step 5: Solve for x
    x = 147,562,248.24/11,319.60
  6. Step 6: Final answer
    x = 13,035.99

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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.