Home / 12,531.12-18,792.36-5,133.48

Finding the Fourth Proportional to 12,531.12, 18,792.36 and 5,133.48

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Solution

The fourth proportional to 12,531.12, 18,792.36 and 5,133.48 is: 7,698.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,531.12 : 18,792.36 = 5,133.48 : x
  2. Step 2: Convert to fraction form
    12,531.12/18,792.36 = 5,133.48/x
  3. Step 3: Cross multiply
    12,531.12x = 18,792.36 × 5,133.48
  4. Step 4: Simplify right side
    12,531.12x = 96,470,204.21
  5. Step 5: Solve for x
    x = 96,470,204.21/12,531.12
  6. Step 6: Final answer
    x = 7,698.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.