Home / 13,109.71-19,653.68-5,207.35

Finding the Fourth Proportional to 13,109.71, 19,653.68 and 5,207.35

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Solution

The fourth proportional to 13,109.71, 19,653.68 and 5,207.35 is: 7,806.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,109.71 : 19,653.68 = 5,207.35 : x
  2. Step 2: Convert to fraction form
    13,109.71/19,653.68 = 5,207.35/x
  3. Step 3: Cross multiply
    13,109.71x = 19,653.68 × 5,207.35
  4. Step 4: Simplify right side
    13,109.71x = 102,343,515.38
  5. Step 5: Solve for x
    x = 102,343,515.38/13,109.71
  6. Step 6: Final answer
    x = 7,806.70

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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.