Home / 15,055.83-20,800.67-10,365.12

Finding the Fourth Proportional to 15,055.83, 20,800.67 and 10,365.12

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Solution

The fourth proportional to 15,055.83, 20,800.67 and 10,365.12 is: 14,320.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,055.83 : 20,800.67 = 10,365.12 : x
  2. Step 2: Convert to fraction form
    15,055.83/20,800.67 = 10,365.12/x
  3. Step 3: Cross multiply
    15,055.83x = 20,800.67 × 10,365.12
  4. Step 4: Simplify right side
    15,055.83x = 215,601,388.80
  5. Step 5: Solve for x
    x = 215,601,388.80/15,055.83
  6. Step 6: Final answer
    x = 14,320.13

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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.