Home / 13,331.04-20,000.88-6,406.08

Finding the Fourth Proportional to 13,331.04, 20,000.88 and 6,406.08

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Solution

The fourth proportional to 13,331.04, 20,000.88 and 6,406.08 is: 9,611.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,331.04 : 20,000.88 = 6,406.08 : x
  2. Step 2: Convert to fraction form
    13,331.04/20,000.88 = 6,406.08/x
  3. Step 3: Cross multiply
    13,331.04x = 20,000.88 × 6,406.08
  4. Step 4: Simplify right side
    13,331.04x = 128,127,237.35
  5. Step 5: Solve for x
    x = 128,127,237.35/13,331.04
  6. Step 6: Final answer
    x = 9,611.20

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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.