Home / 9,520.20-13,137.54-5,271.21

Finding the Fourth Proportional to 9,520.20, 13,137.54 and 5,271.21

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Solution

The fourth proportional to 9,520.20, 13,137.54 and 5,271.21 is: 7,274.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,520.20 : 13,137.54 = 5,271.21 : x
  2. Step 2: Convert to fraction form
    9,520.20/13,137.54 = 5,271.21/x
  3. Step 3: Cross multiply
    9,520.20x = 13,137.54 × 5,271.21
  4. Step 4: Simplify right side
    9,520.20x = 69,250,732.22
  5. Step 5: Solve for x
    x = 69,250,732.22/9,520.20
  6. Step 6: Final answer
    x = 7,274.08

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Half scale
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Double scale
Find fourth proportional to 9,521.20, 13,138.92 and 5,272.21
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.