Home / 11,320.60-16,972.74-7,613.68

Finding the Fourth Proportional to 11,320.60, 16,972.74 and 7,613.68

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Solution

The fourth proportional to 11,320.60, 16,972.74 and 7,613.68 is: 11,415.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,320.60 : 16,972.74 = 7,613.68 : x
  2. Step 2: Convert to fraction form
    11,320.60/16,972.74 = 7,613.68/x
  3. Step 3: Cross multiply
    11,320.60x = 16,972.74 × 7,613.68
  4. Step 4: Simplify right side
    11,320.60x = 129,225,011.08
  5. Step 5: Solve for x
    x = 129,225,011.08/11,320.60
  6. Step 6: Final answer
    x = 11,415.03

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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.