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Finding the Fourth Proportional to 7,429, 10,253.62 and 4,445.50

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Solution

The fourth proportional to 7,429, 10,253.62 and 4,445.50 is: 6,135.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,429 : 10,253.62 = 4,445.50 : x
  2. Step 2: Convert to fraction form
    7,429/10,253.62 = 4,445.50/x
  3. Step 3: Cross multiply
    7,429x = 10,253.62 × 4,445.50
  4. Step 4: Simplify right side
    7,429x = 45,582,467.71
  5. Step 5: Solve for x
    x = 45,582,467.71/7,429
  6. Step 6: Final answer
    x = 6,135.75

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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.