Home / 7,111.78-10,647.02-4,141.17

Finding the Fourth Proportional to 7,111.78, 10,647.02 and 4,141.17

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Solution

The fourth proportional to 7,111.78, 10,647.02 and 4,141.17 is: 6,199.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,111.78 : 10,647.02 = 4,141.17 : x
  2. Step 2: Convert to fraction form
    7,111.78/10,647.02 = 4,141.17/x
  3. Step 3: Cross multiply
    7,111.78x = 10,647.02 × 4,141.17
  4. Step 4: Simplify right side
    7,111.78x = 44,091,045.87
  5. Step 5: Solve for x
    x = 44,091,045.87/7,111.78
  6. Step 6: Final answer
    x = 6,199.72

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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.