Home / 7,137.15-9,853.16-4,305.03

Finding the Fourth Proportional to 7,137.15, 9,853.16 and 4,305.03

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Solution

The fourth proportional to 7,137.15, 9,853.16 and 4,305.03 is: 5,943.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,137.15 : 9,853.16 = 4,305.03 : x
  2. Step 2: Convert to fraction form
    7,137.15/9,853.16 = 4,305.03/x
  3. Step 3: Cross multiply
    7,137.15x = 9,853.16 × 4,305.03
  4. Step 4: Simplify right side
    7,137.15x = 42,418,127.87
  5. Step 5: Solve for x
    x = 42,418,127.87/7,137.15
  6. Step 6: Final answer
    x = 5,943.29

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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.