Home / 9,901.56-13,670.37-6,370.91

Finding the Fourth Proportional to 9,901.56, 13,670.37 and 6,370.91

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Solution

The fourth proportional to 9,901.56, 13,670.37 and 6,370.91 is: 8,795.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,901.56 : 13,670.37 = 6,370.91 : x
  2. Step 2: Convert to fraction form
    9,901.56/13,670.37 = 6,370.91/x
  3. Step 3: Cross multiply
    9,901.56x = 13,670.37 × 6,370.91
  4. Step 4: Simplify right side
    9,901.56x = 87,092,696.94
  5. Step 5: Solve for x
    x = 87,092,696.94/9,901.56
  6. Step 6: Final answer
    x = 8,795.86

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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.