Home / 10,374.90-15,554.79-7,077.66

Finding the Fourth Proportional to 10,374.90, 15,554.79 and 7,077.66

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Solution

The fourth proportional to 10,374.90, 15,554.79 and 7,077.66 is: 10,611.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,374.90 : 15,554.79 = 7,077.66 : x
  2. Step 2: Convert to fraction form
    10,374.90/15,554.79 = 7,077.66/x
  3. Step 3: Cross multiply
    10,374.90x = 15,554.79 × 7,077.66
  4. Step 4: Simplify right side
    10,374.90x = 110,091,514.99
  5. Step 5: Solve for x
    x = 110,091,514.99/10,374.90
  6. Step 6: Final answer
    x = 10,611.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.