Home / 13,285.68-18,337.08-9,099.12

Finding the Fourth Proportional to 13,285.68, 18,337.08 and 9,099.12

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Solution

The fourth proportional to 13,285.68, 18,337.08 and 9,099.12 is: 12,558.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,285.68 : 18,337.08 = 9,099.12 : x
  2. Step 2: Convert to fraction form
    13,285.68/18,337.08 = 9,099.12/x
  3. Step 3: Cross multiply
    13,285.68x = 18,337.08 × 9,099.12
  4. Step 4: Simplify right side
    13,285.68x = 166,851,291.37
  5. Step 5: Solve for x
    x = 166,851,291.37/13,285.68
  6. Step 6: Final answer
    x = 12,558.73

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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.