Home / 15,816.03-23,720.40-10,917.15

Finding the Fourth Proportional to 15,816.03, 23,720.40 and 10,917.15

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Solution

The fourth proportional to 15,816.03, 23,720.40 and 10,917.15 is: 16,373.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,816.03 : 23,720.40 = 10,917.15 : x
  2. Step 2: Convert to fraction form
    15,816.03/23,720.40 = 10,917.15/x
  3. Step 3: Cross multiply
    15,816.03x = 23,720.40 × 10,917.15
  4. Step 4: Simplify right side
    15,816.03x = 258,959,164.86
  5. Step 5: Solve for x
    x = 258,959,164.86/15,816.03
  6. Step 6: Final answer
    x = 16,373.21

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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.