Home / 15,477.01-21,358.32-8,403.43

Finding the Fourth Proportional to 15,477.01, 21,358.32 and 8,403.43

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Solution

The fourth proportional to 15,477.01, 21,358.32 and 8,403.43 is: 11,596.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,477.01 : 21,358.32 = 8,403.43 : x
  2. Step 2: Convert to fraction form
    15,477.01/21,358.32 = 8,403.43/x
  3. Step 3: Cross multiply
    15,477.01x = 21,358.32 × 8,403.43
  4. Step 4: Simplify right side
    15,477.01x = 179,483,147.04
  5. Step 5: Solve for x
    x = 179,483,147.04/15,477.01
  6. Step 6: Final answer
    x = 11,596.76

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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.