Home / 13,277.40-19,915.44-4,956.78

Finding the Fourth Proportional to 13,277.40, 19,915.44 and 4,956.78

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Solution

The fourth proportional to 13,277.40, 19,915.44 and 4,956.78 is: 7,434.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,277.40 : 19,915.44 = 4,956.78 : x
  2. Step 2: Convert to fraction form
    13,277.40/19,915.44 = 4,956.78/x
  3. Step 3: Cross multiply
    13,277.40x = 19,915.44 × 4,956.78
  4. Step 4: Simplify right side
    13,277.40x = 98,716,454.68
  5. Step 5: Solve for x
    x = 98,716,454.68/13,277.40
  6. Step 6: Final answer
    x = 7,434.92

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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.