Home / 9,831.04-13,567.22-5,640.10

Finding the Fourth Proportional to 9,831.04, 13,567.22 and 5,640.10

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Solution

The fourth proportional to 9,831.04, 13,567.22 and 5,640.10 is: 7,783.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,831.04 : 13,567.22 = 5,640.10 : x
  2. Step 2: Convert to fraction form
    9,831.04/13,567.22 = 5,640.10/x
  3. Step 3: Cross multiply
    9,831.04x = 13,567.22 × 5,640.10
  4. Step 4: Simplify right side
    9,831.04x = 76,520,381.49
  5. Step 5: Solve for x
    x = 76,520,381.49/9,831.04
  6. Step 6: Final answer
    x = 7,783.55

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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.