Home / 10,845.45-14,966.15-6,129.45

Finding the Fourth Proportional to 10,845.45, 14,966.15 and 6,129.45

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Solution

The fourth proportional to 10,845.45, 14,966.15 and 6,129.45 is: 8,458.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,845.45 : 14,966.15 = 6,129.45 : x
  2. Step 2: Convert to fraction form
    10,845.45/14,966.15 = 6,129.45/x
  3. Step 3: Cross multiply
    10,845.45x = 14,966.15 × 6,129.45
  4. Step 4: Simplify right side
    10,845.45x = 91,734,237.47
  5. Step 5: Solve for x
    x = 91,734,237.47/10,845.45
  6. Step 6: Final answer
    x = 8,458.32

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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.