Home / 15,427.04-21,289.31-8,353.46

Finding the Fourth Proportional to 15,427.04, 21,289.31 and 8,353.46

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Solution

The fourth proportional to 15,427.04, 21,289.31 and 8,353.46 is: 11,527.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,427.04 : 21,289.31 = 8,353.46 : x
  2. Step 2: Convert to fraction form
    15,427.04/21,289.31 = 8,353.46/x
  3. Step 3: Cross multiply
    15,427.04x = 21,289.31 × 8,353.46
  4. Step 4: Simplify right side
    15,427.04x = 177,839,306.53
  5. Step 5: Solve for x
    x = 177,839,306.53/15,427.04
  6. Step 6: Final answer
    x = 11,527.77

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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.