Home / 21,815.65-32,726.56-7,772.67

Finding the Fourth Proportional to 21,815.65, 32,726.56 and 7,772.67

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Solution

The fourth proportional to 21,815.65, 32,726.56 and 7,772.67 is: 11,660.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,815.65 : 32,726.56 = 7,772.67 : x
  2. Step 2: Convert to fraction form
    21,815.65/32,726.56 = 7,772.67/x
  3. Step 3: Cross multiply
    21,815.65x = 32,726.56 × 7,772.67
  4. Step 4: Simplify right side
    21,815.65x = 254,372,770.42
  5. Step 5: Solve for x
    x = 254,372,770.42/21,815.65
  6. Step 6: Final answer
    x = 11,660.10

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1.5x scale

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.