Home / 13,851.91-19,115.66-7,564.28

Finding the Fourth Proportional to 13,851.91, 19,115.66 and 7,564.28

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Solution

The fourth proportional to 13,851.91, 19,115.66 and 7,564.28 is: 10,438.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,851.91 : 19,115.66 = 7,564.28 : x
  2. Step 2: Convert to fraction form
    13,851.91/19,115.66 = 7,564.28/x
  3. Step 3: Cross multiply
    13,851.91x = 19,115.66 × 7,564.28
  4. Step 4: Simplify right side
    13,851.91x = 144,596,204.62
  5. Step 5: Solve for x
    x = 144,596,204.62/13,851.91
  6. Step 6: Final answer
    x = 10,438.72

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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.