Home / 7,428.72-10,228.32-6,307.44

Finding the Fourth Proportional to 7,428.72, 10,228.32 and 6,307.44

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Solution

The fourth proportional to 7,428.72, 10,228.32 and 6,307.44 is: 8,684.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,428.72 : 10,228.32 = 6,307.44 : x
  2. Step 2: Convert to fraction form
    7,428.72/10,228.32 = 6,307.44/x
  3. Step 3: Cross multiply
    7,428.72x = 10,228.32 × 6,307.44
  4. Step 4: Simplify right side
    7,428.72x = 64,514,514.70
  5. Step 5: Solve for x
    x = 64,514,514.70/7,428.72
  6. Step 6: Final answer
    x = 8,684.47

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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.