Home / 15,812.20-21,802.98-13,462.12

Finding the Fourth Proportional to 15,812.20, 21,802.98 and 13,462.12

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Solution

The fourth proportional to 15,812.20, 21,802.98 and 13,462.12 is: 18,562.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,812.20 : 21,802.98 = 13,462.12 : x
  2. Step 2: Convert to fraction form
    15,812.20/21,802.98 = 13,462.12/x
  3. Step 3: Cross multiply
    15,812.20x = 21,802.98 × 13,462.12
  4. Step 4: Simplify right side
    15,812.20x = 293,514,333.12
  5. Step 5: Solve for x
    x = 293,514,333.12/15,812.20
  6. Step 6: Final answer
    x = 18,562.52

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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.