Home / 7,127.17-9,835.12-4,142.52

Finding the Fourth Proportional to 7,127.17, 9,835.12 and 4,142.52

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Solution

The fourth proportional to 7,127.17, 9,835.12 and 4,142.52 is: 5,716.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,127.17 : 9,835.12 = 4,142.52 : x
  2. Step 2: Convert to fraction form
    7,127.17/9,835.12 = 4,142.52/x
  3. Step 3: Cross multiply
    7,127.17x = 9,835.12 × 4,142.52
  4. Step 4: Simplify right side
    7,127.17x = 40,742,181.30
  5. Step 5: Solve for x
    x = 40,742,181.30/7,127.17
  6. Step 6: Final answer
    x = 5,716.46

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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.