Home / 15,938.48-21,994.66-8,865.16

Finding the Fourth Proportional to 15,938.48, 21,994.66 and 8,865.16

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Solution

The fourth proportional to 15,938.48, 21,994.66 and 8,865.16 is: 12,233.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,938.48 : 21,994.66 = 8,865.16 : x
  2. Step 2: Convert to fraction form
    15,938.48/21,994.66 = 8,865.16/x
  3. Step 3: Cross multiply
    15,938.48x = 21,994.66 × 8,865.16
  4. Step 4: Simplify right side
    15,938.48x = 194,986,180.05
  5. Step 5: Solve for x
    x = 194,986,180.05/15,938.48
  6. Step 6: Final answer
    x = 12,233.67

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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.