Home / 15,678.50-21,626.46-10,301.31

Finding the Fourth Proportional to 15,678.50, 21,626.46 and 10,301.31

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Solution

The fourth proportional to 15,678.50, 21,626.46 and 10,301.31 is: 14,209.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,678.50 : 21,626.46 = 10,301.31 : x
  2. Step 2: Convert to fraction form
    15,678.50/21,626.46 = 10,301.31/x
  3. Step 3: Cross multiply
    15,678.50x = 21,626.46 × 10,301.31
  4. Step 4: Simplify right side
    15,678.50x = 222,780,868.66
  5. Step 5: Solve for x
    x = 222,780,868.66/15,678.50
  6. Step 6: Final answer
    x = 14,209.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.