Home / 12,720.48-19,081.23-4,822.17

Finding the Fourth Proportional to 12,720.48, 19,081.23 and 4,822.17

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Solution

The fourth proportional to 12,720.48, 19,081.23 and 4,822.17 is: 7,233.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,720.48 : 19,081.23 = 4,822.17 : x
  2. Step 2: Convert to fraction form
    12,720.48/19,081.23 = 4,822.17/x
  3. Step 3: Cross multiply
    12,720.48x = 19,081.23 × 4,822.17
  4. Step 4: Simplify right side
    12,720.48x = 92,012,934.87
  5. Step 5: Solve for x
    x = 92,012,934.87/12,720.48
  6. Step 6: Final answer
    x = 7,233.45

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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.