Home / 10,399.90-14,351.65-5,684.22

Finding the Fourth Proportional to 10,399.90, 14,351.65 and 5,684.22

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Solution

The fourth proportional to 10,399.90, 14,351.65 and 5,684.22 is: 7,844.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,399.90 : 14,351.65 = 5,684.22 : x
  2. Step 2: Convert to fraction form
    10,399.90/14,351.65 = 5,684.22/x
  3. Step 3: Cross multiply
    10,399.90x = 14,351.65 × 5,684.22
  4. Step 4: Simplify right side
    10,399.90x = 81,577,835.78
  5. Step 5: Solve for x
    x = 81,577,835.78/10,399.90
  6. Step 6: Final answer
    x = 7,844.10

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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.