Home / 9,140.40-13,710.60-4,993.20

Finding the Fourth Proportional to 9,140.40, 13,710.60 and 4,993.20

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Solution

The fourth proportional to 9,140.40, 13,710.60 and 4,993.20 is: 7,489.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,140.40 : 13,710.60 = 4,993.20 : x
  2. Step 2: Convert to fraction form
    9,140.40/13,710.60 = 4,993.20/x
  3. Step 3: Cross multiply
    9,140.40x = 13,710.60 × 4,993.20
  4. Step 4: Simplify right side
    9,140.40x = 68,459,767.92
  5. Step 5: Solve for x
    x = 68,459,767.92/9,140.40
  6. Step 6: Final answer
    x = 7,489.80

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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.