Home / 7,420.28-10,239.53-4,276.44

Finding the Fourth Proportional to 7,420.28, 10,239.53 and 4,276.44

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Solution

The fourth proportional to 7,420.28, 10,239.53 and 4,276.44 is: 5,901.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,420.28 : 10,239.53 = 4,276.44 : x
  2. Step 2: Convert to fraction form
    7,420.28/10,239.53 = 4,276.44/x
  3. Step 3: Cross multiply
    7,420.28x = 10,239.53 × 4,276.44
  4. Step 4: Simplify right side
    7,420.28x = 43,788,714.29
  5. Step 5: Solve for x
    x = 43,788,714.29/7,420.28
  6. Step 6: Final answer
    x = 5,901.23

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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.