Home / 9,953.11-13,729.59-6,220.63

Finding the Fourth Proportional to 9,953.11, 13,729.59 and 6,220.63

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Solution

The fourth proportional to 9,953.11, 13,729.59 and 6,220.63 is: 8,580.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,953.11 : 13,729.59 = 6,220.63 : x
  2. Step 2: Convert to fraction form
    9,953.11/13,729.59 = 6,220.63/x
  3. Step 3: Cross multiply
    9,953.11x = 13,729.59 × 6,220.63
  4. Step 4: Simplify right side
    9,953.11x = 85,406,699.44
  5. Step 5: Solve for x
    x = 85,406,699.44/9,953.11
  6. Step 6: Final answer
    x = 8,580.91

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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.