Home / 7,111.49-9,813.67-4,127.14

Finding the Fourth Proportional to 7,111.49, 9,813.67 and 4,127.14

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Solution

The fourth proportional to 7,111.49, 9,813.67 and 4,127.14 is: 5,695.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,111.49 : 9,813.67 = 4,127.14 : x
  2. Step 2: Convert to fraction form
    7,111.49/9,813.67 = 4,127.14/x
  3. Step 3: Cross multiply
    7,111.49x = 9,813.67 × 4,127.14
  4. Step 4: Simplify right side
    7,111.49x = 40,502,390.00
  5. Step 5: Solve for x
    x = 40,502,390.00/7,111.49
  6. Step 6: Final answer
    x = 5,695.35

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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.