Home / 9,431.24-13,011.48-7,190.80

Finding the Fourth Proportional to 9,431.24, 13,011.48 and 7,190.80

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Solution

The fourth proportional to 9,431.24, 13,011.48 and 7,190.80 is: 9,920.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,431.24 : 13,011.48 = 7,190.80 : x
  2. Step 2: Convert to fraction form
    9,431.24/13,011.48 = 7,190.80/x
  3. Step 3: Cross multiply
    9,431.24x = 13,011.48 × 7,190.80
  4. Step 4: Simplify right side
    9,431.24x = 93,562,950.38
  5. Step 5: Solve for x
    x = 93,562,950.38/9,431.24
  6. Step 6: Final answer
    x = 9,920.54

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Half scale
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Double scale
Find fourth proportional to 9,432.24, 13,012.86 and 7,191.80
Similar ratio
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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.