Home / 9,990.24-14,985.68-3,749.60

Finding the Fourth Proportional to 9,990.24, 14,985.68 and 3,749.60

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Solution

The fourth proportional to 9,990.24, 14,985.68 and 3,749.60 is: 5,624.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,990.24 : 14,985.68 = 3,749.60 : x
  2. Step 2: Convert to fraction form
    9,990.24/14,985.68 = 3,749.60/x
  3. Step 3: Cross multiply
    9,990.24x = 14,985.68 × 3,749.60
  4. Step 4: Simplify right side
    9,990.24x = 56,190,305.73
  5. Step 5: Solve for x
    x = 56,190,305.73/9,990.24
  6. Step 6: Final answer
    x = 5,624.52

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1.5x scale

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.