Home / 7,104.55-9,805.50-4,121.32

Finding the Fourth Proportional to 7,104.55, 9,805.50 and 4,121.32

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Solution

The fourth proportional to 7,104.55, 9,805.50 and 4,121.32 is: 5,688.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,104.55 : 9,805.50 = 4,121.32 : x
  2. Step 2: Convert to fraction form
    7,104.55/9,805.50 = 4,121.32/x
  3. Step 3: Cross multiply
    7,104.55x = 9,805.50 × 4,121.32
  4. Step 4: Simplify right side
    7,104.55x = 40,411,603.26
  5. Step 5: Solve for x
    x = 40,411,603.26/7,104.55
  6. Step 6: Final answer
    x = 5,688.13

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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.