Home / 13,199.32-18,214.90-7,230.92

Finding the Fourth Proportional to 13,199.32, 18,214.90 and 7,230.92

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Solution

The fourth proportional to 13,199.32, 18,214.90 and 7,230.92 is: 9,978.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,199.32 : 18,214.90 = 7,230.92 : x
  2. Step 2: Convert to fraction form
    13,199.32/18,214.90 = 7,230.92/x
  3. Step 3: Cross multiply
    13,199.32x = 18,214.90 × 7,230.92
  4. Step 4: Simplify right side
    13,199.32x = 131,710,484.71
  5. Step 5: Solve for x
    x = 131,710,484.71/13,199.32
  6. Step 6: Final answer
    x = 9,978.58

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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.