Home / 15,688.26-23,513.25-12,005.90

Finding the Fourth Proportional to 15,688.26, 23,513.25 and 12,005.90

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Solution

The fourth proportional to 15,688.26, 23,513.25 and 12,005.90 is: 17,994.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,688.26 : 23,513.25 = 12,005.90 : x
  2. Step 2: Convert to fraction form
    15,688.26/23,513.25 = 12,005.90/x
  3. Step 3: Cross multiply
    15,688.26x = 23,513.25 × 12,005.90
  4. Step 4: Simplify right side
    15,688.26x = 282,297,728.18
  5. Step 5: Solve for x
    x = 282,297,728.18/15,688.26
  6. Step 6: Final answer
    x = 17,994.20

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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.