Home / 7,322.11-10,102.76-4,135.47

Finding the Fourth Proportional to 7,322.11, 10,102.76 and 4,135.47

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Solution

The fourth proportional to 7,322.11, 10,102.76 and 4,135.47 is: 5,705.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,322.11 : 10,102.76 = 4,135.47 : x
  2. Step 2: Convert to fraction form
    7,322.11/10,102.76 = 4,135.47/x
  3. Step 3: Cross multiply
    7,322.11x = 10,102.76 × 4,135.47
  4. Step 4: Simplify right side
    7,322.11x = 41,779,617.84
  5. Step 5: Solve for x
    x = 41,779,617.84/7,322.11
  6. Step 6: Final answer
    x = 5,705.96

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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.