Home / 13,925.07-20,868.65-7,675.72

Finding the Fourth Proportional to 13,925.07, 20,868.65 and 7,675.72

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Solution

The fourth proportional to 13,925.07, 20,868.65 and 7,675.72 is: 11,503.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,925.07 : 20,868.65 = 7,675.72 : x
  2. Step 2: Convert to fraction form
    13,925.07/20,868.65 = 7,675.72/x
  3. Step 3: Cross multiply
    13,925.07x = 20,868.65 × 7,675.72
  4. Step 4: Simplify right side
    13,925.07x = 160,181,809.83
  5. Step 5: Solve for x
    x = 160,181,809.83/13,925.07
  6. Step 6: Final answer
    x = 11,503.12

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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.