Home / 15,452.66-21,316.82-9,777.84

Finding the Fourth Proportional to 15,452.66, 21,316.82 and 9,777.84

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Solution

The fourth proportional to 15,452.66, 21,316.82 and 9,777.84 is: 13,488.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,452.66 : 21,316.82 = 9,777.84 : x
  2. Step 2: Convert to fraction form
    15,452.66/21,316.82 = 9,777.84/x
  3. Step 3: Cross multiply
    15,452.66x = 21,316.82 × 9,777.84
  4. Step 4: Simplify right side
    15,452.66x = 208,432,455.27
  5. Step 5: Solve for x
    x = 208,432,455.27/15,452.66
  6. Step 6: Final answer
    x = 13,488.45

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Similar ratio
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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.