Home / 13,647.08-18,831.96-7,677.60

Finding the Fourth Proportional to 13,647.08, 18,831.96 and 7,677.60

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Solution

The fourth proportional to 13,647.08, 18,831.96 and 7,677.60 is: 10,594.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,647.08 : 18,831.96 = 7,677.60 : x
  2. Step 2: Convert to fraction form
    13,647.08/18,831.96 = 7,677.60/x
  3. Step 3: Cross multiply
    13,647.08x = 18,831.96 × 7,677.60
  4. Step 4: Simplify right side
    13,647.08x = 144,584,256.10
  5. Step 5: Solve for x
    x = 144,584,256.10/13,647.08
  6. Step 6: Final answer
    x = 10,594.52

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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.