Home / 19,012.56-28,520.88-4,972.80

Finding the Fourth Proportional to 19,012.56, 28,520.88 and 4,972.80

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Solution

The fourth proportional to 19,012.56, 28,520.88 and 4,972.80 is: 7,459.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,012.56 : 28,520.88 = 4,972.80 : x
  2. Step 2: Convert to fraction form
    19,012.56/28,520.88 = 4,972.80/x
  3. Step 3: Cross multiply
    19,012.56x = 28,520.88 × 4,972.80
  4. Step 4: Simplify right side
    19,012.56x = 141,828,632.06
  5. Step 5: Solve for x
    x = 141,828,632.06/19,012.56
  6. Step 6: Final answer
    x = 7,459.73

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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.