Home / 15,527.74-21,429.04-9,154.54

Finding the Fourth Proportional to 15,527.74, 21,429.04 and 9,154.54

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Solution

The fourth proportional to 15,527.74, 21,429.04 and 9,154.54 is: 12,633.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,527.74 : 21,429.04 = 9,154.54 : x
  2. Step 2: Convert to fraction form
    15,527.74/21,429.04 = 9,154.54/x
  3. Step 3: Cross multiply
    15,527.74x = 21,429.04 × 9,154.54
  4. Step 4: Simplify right side
    15,527.74x = 196,173,003.84
  5. Step 5: Solve for x
    x = 196,173,003.84/15,527.74
  6. Step 6: Final answer
    x = 12,633.71

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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.