Home / 12,438.79-17,152.38-9,606.62

Finding the Fourth Proportional to 12,438.79, 17,152.38 and 9,606.62

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Solution

The fourth proportional to 12,438.79, 17,152.38 and 9,606.62 is: 13,246.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,438.79 : 17,152.38 = 9,606.62 : x
  2. Step 2: Convert to fraction form
    12,438.79/17,152.38 = 9,606.62/x
  3. Step 3: Cross multiply
    12,438.79x = 17,152.38 × 9,606.62
  4. Step 4: Simplify right side
    12,438.79x = 164,776,439.64
  5. Step 5: Solve for x
    x = 164,776,439.64/12,438.79
  6. Step 6: Final answer
    x = 13,246.99

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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.