Home / 13,122.71-19,692.17-10,438.40

Finding the Fourth Proportional to 13,122.71, 19,692.17 and 10,438.40

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Solution

The fourth proportional to 13,122.71, 19,692.17 and 10,438.40 is: 15,664.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,122.71 : 19,692.17 = 10,438.40 : x
  2. Step 2: Convert to fraction form
    13,122.71/19,692.17 = 10,438.40/x
  3. Step 3: Cross multiply
    13,122.71x = 19,692.17 × 10,438.40
  4. Step 4: Simplify right side
    13,122.71x = 205,554,596.68
  5. Step 5: Solve for x
    x = 205,554,596.68/13,122.71
  6. Step 6: Final answer
    x = 15,664.04

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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.