Home / 13,935.39-20,886.98-6,423.25

Finding the Fourth Proportional to 13,935.39, 20,886.98 and 6,423.25

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Solution

The fourth proportional to 13,935.39, 20,886.98 and 6,423.25 is: 9,627.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,935.39 : 20,886.98 = 6,423.25 : x
  2. Step 2: Convert to fraction form
    13,935.39/20,886.98 = 6,423.25/x
  3. Step 3: Cross multiply
    13,935.39x = 20,886.98 × 6,423.25
  4. Step 4: Simplify right side
    13,935.39x = 134,162,258.13
  5. Step 5: Solve for x
    x = 134,162,258.13/13,935.39
  6. Step 6: Final answer
    x = 9,627.45

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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.