Home / 9,328.47-12,872.64-5,295.38

Finding the Fourth Proportional to 9,328.47, 12,872.64 and 5,295.38

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Solution

The fourth proportional to 9,328.47, 12,872.64 and 5,295.38 is: 7,307.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,328.47 : 12,872.64 = 5,295.38 : x
  2. Step 2: Convert to fraction form
    9,328.47/12,872.64 = 5,295.38/x
  3. Step 3: Cross multiply
    9,328.47x = 12,872.64 × 5,295.38
  4. Step 4: Simplify right side
    9,328.47x = 68,165,493.93
  5. Step 5: Solve for x
    x = 68,165,493.93/9,328.47
  6. Step 6: Final answer
    x = 7,307.25

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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.