Home / 15,379.31-21,226.89-10,071.04

Finding the Fourth Proportional to 15,379.31, 21,226.89 and 10,071.04

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Solution

The fourth proportional to 15,379.31, 21,226.89 and 10,071.04 is: 13,900.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,379.31 : 21,226.89 = 10,071.04 : x
  2. Step 2: Convert to fraction form
    15,379.31/21,226.89 = 10,071.04/x
  3. Step 3: Cross multiply
    15,379.31x = 21,226.89 × 10,071.04
  4. Step 4: Simplify right side
    15,379.31x = 213,776,752.13
  5. Step 5: Solve for x
    x = 213,776,752.13/15,379.31
  6. Step 6: Final answer
    x = 13,900.28

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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.