Home / 9,899.29-13,655.84-6,121.25

Finding the Fourth Proportional to 9,899.29, 13,655.84 and 6,121.25

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Solution

The fourth proportional to 9,899.29, 13,655.84 and 6,121.25 is: 8,444.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,899.29 : 13,655.84 = 6,121.25 : x
  2. Step 2: Convert to fraction form
    9,899.29/13,655.84 = 6,121.25/x
  3. Step 3: Cross multiply
    9,899.29x = 13,655.84 × 6,121.25
  4. Step 4: Simplify right side
    9,899.29x = 83,590,776.46
  5. Step 5: Solve for x
    x = 83,590,776.46/9,899.29
  6. Step 6: Final answer
    x = 8,444.12

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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.