Home / 9,840.48-13,585.50-9,279.96

Finding the Fourth Proportional to 9,840.48, 13,585.50 and 9,279.96

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Solution

The fourth proportional to 9,840.48, 13,585.50 and 9,279.96 is: 12,811.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,840.48 : 13,585.50 = 9,279.96 : x
  2. Step 2: Convert to fraction form
    9,840.48/13,585.50 = 9,279.96/x
  3. Step 3: Cross multiply
    9,840.48x = 13,585.50 × 9,279.96
  4. Step 4: Simplify right side
    9,840.48x = 126,072,896.58
  5. Step 5: Solve for x
    x = 126,072,896.58/9,840.48
  6. Step 6: Final answer
    x = 12,811.66

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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.