Home / 10,128.61-15,194.54-4,285.27

Finding the Fourth Proportional to 10,128.61, 15,194.54 and 4,285.27

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Solution

The fourth proportional to 10,128.61, 15,194.54 and 4,285.27 is: 6,428.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,128.61 : 15,194.54 = 4,285.27 : x
  2. Step 2: Convert to fraction form
    10,128.61/15,194.54 = 4,285.27/x
  3. Step 3: Cross multiply
    10,128.61x = 15,194.54 × 4,285.27
  4. Step 4: Simplify right side
    10,128.61x = 65,112,712.03
  5. Step 5: Solve for x
    x = 65,112,712.03/10,128.61
  6. Step 6: Final answer
    x = 6,428.59

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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.