Home / 13,429.18-20,144.16-6,409.93

Finding the Fourth Proportional to 13,429.18, 20,144.16 and 6,409.93

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Solution

The fourth proportional to 13,429.18, 20,144.16 and 6,409.93 is: 9,615.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,429.18 : 20,144.16 = 6,409.93 : x
  2. Step 2: Convert to fraction form
    13,429.18/20,144.16 = 6,409.93/x
  3. Step 3: Cross multiply
    13,429.18x = 20,144.16 × 6,409.93
  4. Step 4: Simplify right side
    13,429.18x = 129,122,655.51
  5. Step 5: Solve for x
    x = 129,122,655.51/13,429.18
  6. Step 6: Final answer
    x = 9,615.08

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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.