Home / 10,051.12-13,870.20-5,575.72

Finding the Fourth Proportional to 10,051.12, 13,870.20 and 5,575.72

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Solution

The fourth proportional to 10,051.12, 13,870.20 and 5,575.72 is: 7,694.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,051.12 : 13,870.20 = 5,575.72 : x
  2. Step 2: Convert to fraction form
    10,051.12/13,870.20 = 5,575.72/x
  3. Step 3: Cross multiply
    10,051.12x = 13,870.20 × 5,575.72
  4. Step 4: Simplify right side
    10,051.12x = 77,336,351.54
  5. Step 5: Solve for x
    x = 77,336,351.54/10,051.12
  6. Step 6: Final answer
    x = 7,694.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.