Home / 7,510.40-11,265.60-7,190.45

Finding the Fourth Proportional to 7,510.40, 11,265.60 and 7,190.45

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Solution

The fourth proportional to 7,510.40, 11,265.60 and 7,190.45 is: 10,785.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,510.40 : 11,265.60 = 7,190.45 : x
  2. Step 2: Convert to fraction form
    7,510.40/11,265.60 = 7,190.45/x
  3. Step 3: Cross multiply
    7,510.40x = 11,265.60 × 7,190.45
  4. Step 4: Simplify right side
    7,510.40x = 81,004,733.52
  5. Step 5: Solve for x
    x = 81,004,733.52/7,510.40
  6. Step 6: Final answer
    x = 10,785.68

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Double scale
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Similar ratio
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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.