Home / 9,503.51-13,115.12-5,311.76

Finding the Fourth Proportional to 9,503.51, 13,115.12 and 5,311.76

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Solution

The fourth proportional to 9,503.51, 13,115.12 and 5,311.76 is: 7,330.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,503.51 : 13,115.12 = 5,311.76 : x
  2. Step 2: Convert to fraction form
    9,503.51/13,115.12 = 5,311.76/x
  3. Step 3: Cross multiply
    9,503.51x = 13,115.12 × 5,311.76
  4. Step 4: Simplify right side
    9,503.51x = 69,664,277.68
  5. Step 5: Solve for x
    x = 69,664,277.68/9,503.51
  6. Step 6: Final answer
    x = 7,330.38

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Double scale
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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.