Home / 15,435.85-21,301.48-8,362.27

Finding the Fourth Proportional to 15,435.85, 21,301.48 and 8,362.27

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Solution

The fourth proportional to 15,435.85, 21,301.48 and 8,362.27 is: 11,539.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,435.85 : 21,301.48 = 8,362.27 : x
  2. Step 2: Convert to fraction form
    15,435.85/21,301.48 = 8,362.27/x
  3. Step 3: Cross multiply
    15,435.85x = 21,301.48 × 8,362.27
  4. Step 4: Simplify right side
    15,435.85x = 178,128,727.16
  5. Step 5: Solve for x
    x = 178,128,727.16/15,435.85
  6. Step 6: Final answer
    x = 11,539.94

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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.