Home / 14,143.23-21,220.38-4,283.51

Finding the Fourth Proportional to 14,143.23, 21,220.38 and 4,283.51

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Solution

The fourth proportional to 14,143.23, 21,220.38 and 4,283.51 is: 6,426.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,143.23 : 21,220.38 = 4,283.51 : x
  2. Step 2: Convert to fraction form
    14,143.23/21,220.38 = 4,283.51/x
  3. Step 3: Cross multiply
    14,143.23x = 21,220.38 × 4,283.51
  4. Step 4: Simplify right side
    14,143.23x = 90,897,603.83
  5. Step 5: Solve for x
    x = 90,897,603.83/14,143.23
  6. Step 6: Final answer
    x = 6,426.93

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Double scale
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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.