Home / 7,111.04-9,817.44-5,126.72

Finding the Fourth Proportional to 7,111.04, 9,817.44 and 5,126.72

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Solution

The fourth proportional to 7,111.04, 9,817.44 and 5,126.72 is: 7,077.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,111.04 : 9,817.44 = 5,126.72 : x
  2. Step 2: Convert to fraction form
    7,111.04/9,817.44 = 5,126.72/x
  3. Step 3: Cross multiply
    7,111.04x = 9,817.44 × 5,126.72
  4. Step 4: Simplify right side
    7,111.04x = 50,331,266.00
  5. Step 5: Solve for x
    x = 50,331,266.00/7,111.04
  6. Step 6: Final answer
    x = 7,077.91

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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.