Home / 10,368.21-15,550.80-2,971.90

Finding the Fourth Proportional to 10,368.21, 15,550.80 and 2,971.90

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Solution

The fourth proportional to 10,368.21, 15,550.80 and 2,971.90 is: 4,457.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,368.21 : 15,550.80 = 2,971.90 : x
  2. Step 2: Convert to fraction form
    10,368.21/15,550.80 = 2,971.90/x
  3. Step 3: Cross multiply
    10,368.21x = 15,550.80 × 2,971.90
  4. Step 4: Simplify right side
    10,368.21x = 46,215,422.52
  5. Step 5: Solve for x
    x = 46,215,422.52/10,368.21
  6. Step 6: Final answer
    x = 4,457.42

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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.