Home / 14,081.18-19,431.72-7,707.62

Finding the Fourth Proportional to 14,081.18, 19,431.72 and 7,707.62

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Solution

The fourth proportional to 14,081.18, 19,431.72 and 7,707.62 is: 10,636.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,081.18 : 19,431.72 = 7,707.62 : x
  2. Step 2: Convert to fraction form
    14,081.18/19,431.72 = 7,707.62/x
  3. Step 3: Cross multiply
    14,081.18x = 19,431.72 × 7,707.62
  4. Step 4: Simplify right side
    14,081.18x = 149,772,362.29
  5. Step 5: Solve for x
    x = 149,772,362.29/14,081.18
  6. Step 6: Final answer
    x = 10,636.35

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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.