Home / 15,261.30-21,061.88-8,546.81

Finding the Fourth Proportional to 15,261.30, 21,061.88 and 8,546.81

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Solution

The fourth proportional to 15,261.30, 21,061.88 and 8,546.81 is: 11,795.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,261.30 : 21,061.88 = 8,546.81 : x
  2. Step 2: Convert to fraction form
    15,261.30/21,061.88 = 8,546.81/x
  3. Step 3: Cross multiply
    15,261.30x = 21,061.88 × 8,546.81
  4. Step 4: Simplify right side
    15,261.30x = 180,011,738.56
  5. Step 5: Solve for x
    x = 180,011,738.56/15,261.30
  6. Step 6: Final answer
    x = 11,795.31

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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.