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Finding the Fourth Proportional to 7,573.41, 11,317.91 and 7,152.21

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Solution

The fourth proportional to 7,573.41, 11,317.91 and 7,152.21 is: 10,688.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,573.41 : 11,317.91 = 7,152.21 : x
  2. Step 2: Convert to fraction form
    7,573.41/11,317.91 = 7,152.21/x
  3. Step 3: Cross multiply
    7,573.41x = 11,317.91 × 7,152.21
  4. Step 4: Simplify right side
    7,573.41x = 80,948,033.32
  5. Step 5: Solve for x
    x = 80,948,033.32/7,573.41
  6. Step 6: Final answer
    x = 10,688.45

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.