Home / 13,071.66-19,601.80-4,748.90

Finding the Fourth Proportional to 13,071.66, 19,601.80 and 4,748.90

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Solution

The fourth proportional to 13,071.66, 19,601.80 and 4,748.90 is: 7,121.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,071.66 : 19,601.80 = 4,748.90 : x
  2. Step 2: Convert to fraction form
    13,071.66/19,601.80 = 4,748.90/x
  3. Step 3: Cross multiply
    13,071.66x = 19,601.80 × 4,748.90
  4. Step 4: Simplify right side
    13,071.66x = 93,086,988.02
  5. Step 5: Solve for x
    x = 93,086,988.02/13,071.66
  6. Step 6: Final answer
    x = 7,121.28

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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.