Home / 9,329.94-12,875.29-5,138.19

Finding the Fourth Proportional to 9,329.94, 12,875.29 and 5,138.19

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Solution

The fourth proportional to 9,329.94, 12,875.29 and 5,138.19 is: 7,090.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,329.94 : 12,875.29 = 5,138.19 : x
  2. Step 2: Convert to fraction form
    9,329.94/12,875.29 = 5,138.19/x
  3. Step 3: Cross multiply
    9,329.94x = 12,875.29 × 5,138.19
  4. Step 4: Simplify right side
    9,329.94x = 66,155,673.48
  5. Step 5: Solve for x
    x = 66,155,673.48/9,329.94
  6. Step 6: Final answer
    x = 7,090.69

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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.