Home / 9,329.90-12,875.37-5,351

Finding the Fourth Proportional to 9,329.90, 12,875.37 and 5,351

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Solution

The fourth proportional to 9,329.90, 12,875.37 and 5,351 is: 7,384.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,329.90 : 12,875.37 = 5,351 : x
  2. Step 2: Convert to fraction form
    9,329.90/12,875.37 = 5,351/x
  3. Step 3: Cross multiply
    9,329.90x = 12,875.37 × 5,351
  4. Step 4: Simplify right side
    9,329.90x = 68,896,104.87
  5. Step 5: Solve for x
    x = 68,896,104.87/9,329.90
  6. Step 6: Final answer
    x = 7,384.44

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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.