Home / 8,148.33-12,153.51-7,902.36

Finding the Fourth Proportional to 8,148.33, 12,153.51 and 7,902.36

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Solution

The fourth proportional to 8,148.33, 12,153.51 and 7,902.36 is: 11,786.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,148.33 : 12,153.51 = 7,902.36 : x
  2. Step 2: Convert to fraction form
    8,148.33/12,153.51 = 7,902.36/x
  3. Step 3: Cross multiply
    8,148.33x = 12,153.51 × 7,902.36
  4. Step 4: Simplify right side
    8,148.33x = 96,041,411.28
  5. Step 5: Solve for x
    x = 96,041,411.28/8,148.33
  6. Step 6: Final answer
    x = 11,786.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.