Home / 13,429.56-20,150.10-7,577.40

Finding the Fourth Proportional to 13,429.56, 20,150.10 and 7,577.40

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Solution

The fourth proportional to 13,429.56, 20,150.10 and 7,577.40 is: 11,369.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,429.56 : 20,150.10 = 7,577.40 : x
  2. Step 2: Convert to fraction form
    13,429.56/20,150.10 = 7,577.40/x
  3. Step 3: Cross multiply
    13,429.56x = 20,150.10 × 7,577.40
  4. Step 4: Simplify right side
    13,429.56x = 152,685,367.74
  5. Step 5: Solve for x
    x = 152,685,367.74/13,429.56
  6. Step 6: Final answer
    x = 11,369.35

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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.