Home / 12,071.43-18,107.28-7,937.46

Finding the Fourth Proportional to 12,071.43, 18,107.28 and 7,937.46

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Solution

The fourth proportional to 12,071.43, 18,107.28 and 7,937.46 is: 11,906.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,071.43 : 18,107.28 = 7,937.46 : x
  2. Step 2: Convert to fraction form
    12,071.43/18,107.28 = 7,937.46/x
  3. Step 3: Cross multiply
    12,071.43x = 18,107.28 × 7,937.46
  4. Step 4: Simplify right side
    12,071.43x = 143,725,810.71
  5. Step 5: Solve for x
    x = 143,725,810.71/12,071.43
  6. Step 6: Final answer
    x = 11,906.28

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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.