Home / 19,868.13-29,802.20-7,391.29

Finding the Fourth Proportional to 19,868.13, 29,802.20 and 7,391.29

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Solution

The fourth proportional to 19,868.13, 29,802.20 and 7,391.29 is: 11,086.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,868.13 : 29,802.20 = 7,391.29 : x
  2. Step 2: Convert to fraction form
    19,868.13/29,802.20 = 7,391.29/x
  3. Step 3: Cross multiply
    19,868.13x = 29,802.20 × 7,391.29
  4. Step 4: Simplify right side
    19,868.13x = 220,276,702.84
  5. Step 5: Solve for x
    x = 220,276,702.84/19,868.13
  6. Step 6: Final answer
    x = 11,086.94

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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.