Home / 10,129.05-15,143.63-8,586.27

Finding the Fourth Proportional to 10,129.05, 15,143.63 and 8,586.27

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Solution

The fourth proportional to 10,129.05, 15,143.63 and 8,586.27 is: 12,837.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,129.05 : 15,143.63 = 8,586.27 : x
  2. Step 2: Convert to fraction form
    10,129.05/15,143.63 = 8,586.27/x
  3. Step 3: Cross multiply
    10,129.05x = 15,143.63 × 8,586.27
  4. Step 4: Simplify right side
    10,129.05x = 130,027,253.03
  5. Step 5: Solve for x
    x = 130,027,253.03/10,129.05
  6. Step 6: Final answer
    x = 12,837.06

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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.