Home / 15,477.29-21,358.33-8,403.71

Finding the Fourth Proportional to 15,477.29, 21,358.33 and 8,403.71

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Solution

The fourth proportional to 15,477.29, 21,358.33 and 8,403.71 is: 11,596.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,477.29 : 21,358.33 = 8,403.71 : x
  2. Step 2: Convert to fraction form
    15,477.29/21,358.33 = 8,403.71/x
  3. Step 3: Cross multiply
    15,477.29x = 21,358.33 × 8,403.71
  4. Step 4: Simplify right side
    15,477.29x = 179,489,211.40
  5. Step 5: Solve for x
    x = 179,489,211.40/15,477.29
  6. Step 6: Final answer
    x = 11,596.94

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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.