Home / 13,281.86-18,329.12-7,313.92

Finding the Fourth Proportional to 13,281.86, 18,329.12 and 7,313.92

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Solution

The fourth proportional to 13,281.86, 18,329.12 and 7,313.92 is: 10,093.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,281.86 : 18,329.12 = 7,313.92 : x
  2. Step 2: Convert to fraction form
    13,281.86/18,329.12 = 7,313.92/x
  3. Step 3: Cross multiply
    13,281.86x = 18,329.12 × 7,313.92
  4. Step 4: Simplify right side
    13,281.86x = 134,057,717.35
  5. Step 5: Solve for x
    x = 134,057,717.35/13,281.86
  6. Step 6: Final answer
    x = 10,093.29

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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.