Home / 13,909.44-20,870.94-6,117.24

Finding the Fourth Proportional to 13,909.44, 20,870.94 and 6,117.24

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Solution

The fourth proportional to 13,909.44, 20,870.94 and 6,117.24 is: 9,178.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,909.44 : 20,870.94 = 6,117.24 : x
  2. Step 2: Convert to fraction form
    13,909.44/20,870.94 = 6,117.24/x
  3. Step 3: Cross multiply
    13,909.44x = 20,870.94 × 6,117.24
  4. Step 4: Simplify right side
    13,909.44x = 127,672,549.01
  5. Step 5: Solve for x
    x = 127,672,549.01/13,909.44
  6. Step 6: Final answer
    x = 9,178.84

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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.