Home / 10,187.19-15,285.38-6,488.46

Finding the Fourth Proportional to 10,187.19, 15,285.38 and 6,488.46

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Solution

The fourth proportional to 10,187.19, 15,285.38 and 6,488.46 is: 9,735.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,187.19 : 15,285.38 = 6,488.46 : x
  2. Step 2: Convert to fraction form
    10,187.19/15,285.38 = 6,488.46/x
  3. Step 3: Cross multiply
    10,187.19x = 15,285.38 × 6,488.46
  4. Step 4: Simplify right side
    10,187.19x = 99,178,544.27
  5. Step 5: Solve for x
    x = 99,178,544.27/10,187.19
  6. Step 6: Final answer
    x = 9,735.61

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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.