Home / 13,725.39-18,940.88-7,437.76

Finding the Fourth Proportional to 13,725.39, 18,940.88 and 7,437.76

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Solution

The fourth proportional to 13,725.39, 18,940.88 and 7,437.76 is: 10,264.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,725.39 : 18,940.88 = 7,437.76 : x
  2. Step 2: Convert to fraction form
    13,725.39/18,940.88 = 7,437.76/x
  3. Step 3: Cross multiply
    13,725.39x = 18,940.88 × 7,437.76
  4. Step 4: Simplify right side
    13,725.39x = 140,877,719.63
  5. Step 5: Solve for x
    x = 140,877,719.63/13,725.39
  6. Step 6: Final answer
    x = 10,264.02

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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.