Home / 15,389.25-21,237.17-8,765.25

Finding the Fourth Proportional to 15,389.25, 21,237.17 and 8,765.25

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Solution

The fourth proportional to 15,389.25, 21,237.17 and 8,765.25 is: 12,096.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,389.25 : 21,237.17 = 8,765.25 : x
  2. Step 2: Convert to fraction form
    15,389.25/21,237.17 = 8,765.25/x
  3. Step 3: Cross multiply
    15,389.25x = 21,237.17 × 8,765.25
  4. Step 4: Simplify right side
    15,389.25x = 186,149,104.34
  5. Step 5: Solve for x
    x = 186,149,104.34/15,389.25
  6. Step 6: Final answer
    x = 12,096.05

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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.