Home / 9,027.50-12,457.95-5,490.05

Finding the Fourth Proportional to 9,027.50, 12,457.95 and 5,490.05

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Solution

The fourth proportional to 9,027.50, 12,457.95 and 5,490.05 is: 7,576.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,027.50 : 12,457.95 = 5,490.05 : x
  2. Step 2: Convert to fraction form
    9,027.50/12,457.95 = 5,490.05/x
  3. Step 3: Cross multiply
    9,027.50x = 12,457.95 × 5,490.05
  4. Step 4: Simplify right side
    9,027.50x = 68,394,768.40
  5. Step 5: Solve for x
    x = 68,394,768.40/9,027.50
  6. Step 6: Final answer
    x = 7,576.27

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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.