Home / 15,056.33-20,778.45-9,087.87

Finding the Fourth Proportional to 15,056.33, 20,778.45 and 9,087.87

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Solution

The fourth proportional to 15,056.33, 20,778.45 and 9,087.87 is: 12,541.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,056.33 : 20,778.45 = 9,087.87 : x
  2. Step 2: Convert to fraction form
    15,056.33/20,778.45 = 9,087.87/x
  3. Step 3: Cross multiply
    15,056.33x = 20,778.45 × 9,087.87
  4. Step 4: Simplify right side
    15,056.33x = 188,831,852.40
  5. Step 5: Solve for x
    x = 188,831,852.40/15,056.33
  6. Step 6: Final answer
    x = 12,541.69

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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.