Home / 13,387.40-20,066.70-5,064.20

Finding the Fourth Proportional to 13,387.40, 20,066.70 and 5,064.20

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Solution

The fourth proportional to 13,387.40, 20,066.70 and 5,064.20 is: 7,590.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,387.40 : 20,066.70 = 5,064.20 : x
  2. Step 2: Convert to fraction form
    13,387.40/20,066.70 = 5,064.20/x
  3. Step 3: Cross multiply
    13,387.40x = 20,066.70 × 5,064.20
  4. Step 4: Simplify right side
    13,387.40x = 101,621,782.14
  5. Step 5: Solve for x
    x = 101,621,782.14/13,387.40
  6. Step 6: Final answer
    x = 7,590.85

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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.