Home / 10,154.44-15,237.15-7,688.68

Finding the Fourth Proportional to 10,154.44, 15,237.15 and 7,688.68

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Solution

The fourth proportional to 10,154.44, 15,237.15 and 7,688.68 is: 11,537.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,154.44 : 15,237.15 = 7,688.68 : x
  2. Step 2: Convert to fraction form
    10,154.44/15,237.15 = 7,688.68/x
  3. Step 3: Cross multiply
    10,154.44x = 15,237.15 × 7,688.68
  4. Step 4: Simplify right side
    10,154.44x = 117,153,570.46
  5. Step 5: Solve for x
    x = 117,153,570.46/10,154.44
  6. Step 6: Final answer
    x = 11,537.18

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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.