Home / 13,036.20-19,519.74-6,785.16

Finding the Fourth Proportional to 13,036.20, 19,519.74 and 6,785.16

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Solution

The fourth proportional to 13,036.20, 19,519.74 and 6,785.16 is: 10,159.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,036.20 : 19,519.74 = 6,785.16 : x
  2. Step 2: Convert to fraction form
    13,036.20/19,519.74 = 6,785.16/x
  3. Step 3: Cross multiply
    13,036.20x = 19,519.74 × 6,785.16
  4. Step 4: Simplify right side
    13,036.20x = 132,444,559.06
  5. Step 5: Solve for x
    x = 132,444,559.06/13,036.20
  6. Step 6: Final answer
    x = 10,159.75

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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.