Home / 14,085.60-21,133.80-13,864.20

Finding the Fourth Proportional to 14,085.60, 21,133.80 and 13,864.20

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Solution

The fourth proportional to 14,085.60, 21,133.80 and 13,864.20 is: 20,801.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,085.60 : 21,133.80 = 13,864.20 : x
  2. Step 2: Convert to fraction form
    14,085.60/21,133.80 = 13,864.20/x
  3. Step 3: Cross multiply
    14,085.60x = 21,133.80 × 13,864.20
  4. Step 4: Simplify right side
    14,085.60x = 293,003,229.96
  5. Step 5: Solve for x
    x = 293,003,229.96/14,085.60
  6. Step 6: Final answer
    x = 20,801.62

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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.