Home / 13,930.39-20,895.51-4,931.18

Finding the Fourth Proportional to 13,930.39, 20,895.51 and 4,931.18

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Solution

The fourth proportional to 13,930.39, 20,895.51 and 4,931.18 is: 7,396.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,930.39 : 20,895.51 = 4,931.18 : x
  2. Step 2: Convert to fraction form
    13,930.39/20,895.51 = 4,931.18/x
  3. Step 3: Cross multiply
    13,930.39x = 20,895.51 × 4,931.18
  4. Step 4: Simplify right side
    13,930.39x = 103,039,513.37
  5. Step 5: Solve for x
    x = 103,039,513.37/13,930.39
  6. Step 6: Final answer
    x = 7,396.74

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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.