Home / 15,477.25-21,358.03-8,403.52

Finding the Fourth Proportional to 15,477.25, 21,358.03 and 8,403.52

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Solution

The fourth proportional to 15,477.25, 21,358.03 and 8,403.52 is: 11,596.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,477.25 : 21,358.03 = 8,403.52 : x
  2. Step 2: Convert to fraction form
    15,477.25/21,358.03 = 8,403.52/x
  3. Step 3: Cross multiply
    15,477.25x = 21,358.03 × 8,403.52
  4. Step 4: Simplify right side
    15,477.25x = 179,482,632.27
  5. Step 5: Solve for x
    x = 179,482,632.27/15,477.25
  6. Step 6: Final answer
    x = 11,596.55

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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.