Home / 13,785.65-19,016.33-8,476.70

Finding the Fourth Proportional to 13,785.65, 19,016.33 and 8,476.70

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Solution

The fourth proportional to 13,785.65, 19,016.33 and 8,476.70 is: 11,693.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,785.65 : 19,016.33 = 8,476.70 : x
  2. Step 2: Convert to fraction form
    13,785.65/19,016.33 = 8,476.70/x
  3. Step 3: Cross multiply
    13,785.65x = 19,016.33 × 8,476.70
  4. Step 4: Simplify right side
    13,785.65x = 161,195,729.67
  5. Step 5: Solve for x
    x = 161,195,729.67/13,785.65
  6. Step 6: Final answer
    x = 11,693.01

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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.