Home / 15,129.83-20,864.52-10,094.27

Finding the Fourth Proportional to 15,129.83, 20,864.52 and 10,094.27

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Solution

The fourth proportional to 15,129.83, 20,864.52 and 10,094.27 is: 13,920.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,129.83 : 20,864.52 = 10,094.27 : x
  2. Step 2: Convert to fraction form
    15,129.83/20,864.52 = 10,094.27/x
  3. Step 3: Cross multiply
    15,129.83x = 20,864.52 × 10,094.27
  4. Step 4: Simplify right side
    15,129.83x = 210,611,993.98
  5. Step 5: Solve for x
    x = 210,611,993.98/15,129.83
  6. Step 6: Final answer
    x = 13,920.31

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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.