Home / 8,750.04-13,110.21-5,280

Finding the Fourth Proportional to 8,750.04, 13,110.21 and 5,280

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Solution

The fourth proportional to 8,750.04, 13,110.21 and 5,280 is: 7,911.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,750.04 : 13,110.21 = 5,280 : x
  2. Step 2: Convert to fraction form
    8,750.04/13,110.21 = 5,280/x
  3. Step 3: Cross multiply
    8,750.04x = 13,110.21 × 5,280
  4. Step 4: Simplify right side
    8,750.04x = 69,221,908.80
  5. Step 5: Solve for x
    x = 69,221,908.80/8,750.04
  6. Step 6: Final answer
    x = 7,911.04

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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.