Home / 9,298-12,831.84-5,320.40

Finding the Fourth Proportional to 9,298, 12,831.84 and 5,320.40

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Solution

The fourth proportional to 9,298, 12,831.84 and 5,320.40 is: 7,342.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,298 : 12,831.84 = 5,320.40 : x
  2. Step 2: Convert to fraction form
    9,298/12,831.84 = 5,320.40/x
  3. Step 3: Cross multiply
    9,298x = 12,831.84 × 5,320.40
  4. Step 4: Simplify right side
    9,298x = 68,270,521.54
  5. Step 5: Solve for x
    x = 68,270,521.54/9,298
  6. Step 6: Final answer
    x = 7,342.50

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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.