Home / 13,199.04-19,798.50-5,407.86

Finding the Fourth Proportional to 13,199.04, 19,798.50 and 5,407.86

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Solution

The fourth proportional to 13,199.04, 19,798.50 and 5,407.86 is: 8,111.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,199.04 : 19,798.50 = 5,407.86 : x
  2. Step 2: Convert to fraction form
    13,199.04/19,798.50 = 5,407.86/x
  3. Step 3: Cross multiply
    13,199.04x = 19,798.50 × 5,407.86
  4. Step 4: Simplify right side
    13,199.04x = 107,067,516.21
  5. Step 5: Solve for x
    x = 107,067,516.21/13,199.04
  6. Step 6: Final answer
    x = 8,111.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.