Home / 13,537.78-18,685.52-10,838.46

Finding the Fourth Proportional to 13,537.78, 18,685.52 and 10,838.46

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Solution

The fourth proportional to 13,537.78, 18,685.52 and 10,838.46 is: 14,959.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,537.78 : 18,685.52 = 10,838.46 : x
  2. Step 2: Convert to fraction form
    13,537.78/18,685.52 = 10,838.46/x
  3. Step 3: Cross multiply
    13,537.78x = 18,685.52 × 10,838.46
  4. Step 4: Simplify right side
    13,537.78x = 202,522,261.10
  5. Step 5: Solve for x
    x = 202,522,261.10/13,537.78
  6. Step 6: Final answer
    x = 14,959.78

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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.