Home / 13,614.30-18,787.51-7,564.41

Finding the Fourth Proportional to 13,614.30, 18,787.51 and 7,564.41

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Solution

The fourth proportional to 13,614.30, 18,787.51 and 7,564.41 is: 10,438.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,614.30 : 18,787.51 = 7,564.41 : x
  2. Step 2: Convert to fraction form
    13,614.30/18,787.51 = 7,564.41/x
  3. Step 3: Cross multiply
    13,614.30x = 18,787.51 × 7,564.41
  4. Step 4: Simplify right side
    13,614.30x = 142,116,428.52
  5. Step 5: Solve for x
    x = 142,116,428.52/13,614.30
  6. Step 6: Final answer
    x = 10,438.76

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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.