Home / 6,111.12-9,161.16-5,077.80

Finding the Fourth Proportional to 6,111.12, 9,161.16 and 5,077.80

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Solution

The fourth proportional to 6,111.12, 9,161.16 and 5,077.80 is: 7,612.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,111.12 : 9,161.16 = 5,077.80 : x
  2. Step 2: Convert to fraction form
    6,111.12/9,161.16 = 5,077.80/x
  3. Step 3: Cross multiply
    6,111.12x = 9,161.16 × 5,077.80
  4. Step 4: Simplify right side
    6,111.12x = 46,518,538.25
  5. Step 5: Solve for x
    x = 46,518,538.25/6,111.12
  6. Step 6: Final answer
    x = 7,612.11

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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.