Home / 8,521.02-12,831.77-7,438.14

Finding the Fourth Proportional to 8,521.02, 12,831.77 and 7,438.14

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Solution

The fourth proportional to 8,521.02, 12,831.77 and 7,438.14 is: 11,201.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,521.02 : 12,831.77 = 7,438.14 : x
  2. Step 2: Convert to fraction form
    8,521.02/12,831.77 = 7,438.14/x
  3. Step 3: Cross multiply
    8,521.02x = 12,831.77 × 7,438.14
  4. Step 4: Simplify right side
    8,521.02x = 95,444,464.52
  5. Step 5: Solve for x
    x = 95,444,464.52/8,521.02
  6. Step 6: Final answer
    x = 11,201.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.