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Finding the Fourth Proportional to 7,509.62, 10,362.98 and 4,152.21

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Solution

The fourth proportional to 7,509.62, 10,362.98 and 4,152.21 is: 5,729.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,509.62 : 10,362.98 = 4,152.21 : x
  2. Step 2: Convert to fraction form
    7,509.62/10,362.98 = 4,152.21/x
  3. Step 3: Cross multiply
    7,509.62x = 10,362.98 × 4,152.21
  4. Step 4: Simplify right side
    7,509.62x = 43,029,248.42
  5. Step 5: Solve for x
    x = 43,029,248.42/7,509.62
  6. Step 6: Final answer
    x = 5,729.89

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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.