Home / 8,750.54-13,110.96-5,280.50

Finding the Fourth Proportional to 8,750.54, 13,110.96 and 5,280.50

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Solution

The fourth proportional to 8,750.54, 13,110.96 and 5,280.50 is: 7,911.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,750.54 : 13,110.96 = 5,280.50 : x
  2. Step 2: Convert to fraction form
    8,750.54/13,110.96 = 5,280.50/x
  3. Step 3: Cross multiply
    8,750.54x = 13,110.96 × 5,280.50
  4. Step 4: Simplify right side
    8,750.54x = 69,232,424.28
  5. Step 5: Solve for x
    x = 69,232,424.28/8,750.54
  6. Step 6: Final answer
    x = 7,911.79

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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.