Home / 15,488.76-21,369.78-8,773.32

Finding the Fourth Proportional to 15,488.76, 21,369.78 and 8,773.32

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Solution

The fourth proportional to 15,488.76, 21,369.78 and 8,773.32 is: 12,104.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,488.76 : 21,369.78 = 8,773.32 : x
  2. Step 2: Convert to fraction form
    15,488.76/21,369.78 = 8,773.32/x
  3. Step 3: Cross multiply
    15,488.76x = 21,369.78 × 8,773.32
  4. Step 4: Simplify right side
    15,488.76x = 187,483,918.27
  5. Step 5: Solve for x
    x = 187,483,918.27/15,488.76
  6. Step 6: Final answer
    x = 12,104.51

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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.