Home / 18,705.30-25,812.51-10,207.22

Finding the Fourth Proportional to 18,705.30, 25,812.51 and 10,207.22

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Solution

The fourth proportional to 18,705.30, 25,812.51 and 10,207.22 is: 14,085.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,705.30 : 25,812.51 = 10,207.22 : x
  2. Step 2: Convert to fraction form
    18,705.30/25,812.51 = 10,207.22/x
  3. Step 3: Cross multiply
    18,705.30x = 25,812.51 × 10,207.22
  4. Step 4: Simplify right side
    18,705.30x = 263,473,858.40
  5. Step 5: Solve for x
    x = 263,473,858.40/18,705.30
  6. Step 6: Final answer
    x = 14,085.52

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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.