Home / 15,112.04-20,835.87-10,065.20

Finding the Fourth Proportional to 15,112.04, 20,835.87 and 10,065.20

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Solution

The fourth proportional to 15,112.04, 20,835.87 and 10,065.20 is: 13,877.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,112.04 : 20,835.87 = 10,065.20 : x
  2. Step 2: Convert to fraction form
    15,112.04/20,835.87 = 10,065.20/x
  3. Step 3: Cross multiply
    15,112.04x = 20,835.87 × 10,065.20
  4. Step 4: Simplify right side
    15,112.04x = 209,717,198.72
  5. Step 5: Solve for x
    x = 209,717,198.72/15,112.04
  6. Step 6: Final answer
    x = 13,877.49

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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.