Home / 13,599.46-18,761.88-8,285.05

Finding the Fourth Proportional to 13,599.46, 18,761.88 and 8,285.05

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Solution

The fourth proportional to 13,599.46, 18,761.88 and 8,285.05 is: 11,430.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,599.46 : 18,761.88 = 8,285.05 : x
  2. Step 2: Convert to fraction form
    13,599.46/18,761.88 = 8,285.05/x
  3. Step 3: Cross multiply
    13,599.46x = 18,761.88 × 8,285.05
  4. Step 4: Simplify right side
    13,599.46x = 155,443,113.89
  5. Step 5: Solve for x
    x = 155,443,113.89/13,599.46
  6. Step 6: Final answer
    x = 11,430.09

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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.