Home / 13,434.01-20,145.75-7,888.75

Finding the Fourth Proportional to 13,434.01, 20,145.75 and 7,888.75

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Solution

The fourth proportional to 13,434.01, 20,145.75 and 7,888.75 is: 11,830.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,434.01 : 20,145.75 = 7,888.75 : x
  2. Step 2: Convert to fraction form
    13,434.01/20,145.75 = 7,888.75/x
  3. Step 3: Cross multiply
    13,434.01x = 20,145.75 × 7,888.75
  4. Step 4: Simplify right side
    13,434.01x = 158,924,785.31
  5. Step 5: Solve for x
    x = 158,924,785.31/13,434.01
  6. Step 6: Final answer
    x = 11,830.03

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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.