Home / 8,683.75-11,989.34-5,377.51

Finding the Fourth Proportional to 8,683.75, 11,989.34 and 5,377.51

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Solution

The fourth proportional to 8,683.75, 11,989.34 and 5,377.51 is: 7,424.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,683.75 : 11,989.34 = 5,377.51 : x
  2. Step 2: Convert to fraction form
    8,683.75/11,989.34 = 5,377.51/x
  3. Step 3: Cross multiply
    8,683.75x = 11,989.34 × 5,377.51
  4. Step 4: Simplify right side
    8,683.75x = 64,472,795.74
  5. Step 5: Solve for x
    x = 64,472,795.74/8,683.75
  6. Step 6: Final answer
    x = 7,424.53

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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.