Home / 9,935.15-13,710.44-5,397.80

Finding the Fourth Proportional to 9,935.15, 13,710.44 and 5,397.80

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Solution

The fourth proportional to 9,935.15, 13,710.44 and 5,397.80 is: 7,448.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,935.15 : 13,710.44 = 5,397.80 : x
  2. Step 2: Convert to fraction form
    9,935.15/13,710.44 = 5,397.80/x
  3. Step 3: Cross multiply
    9,935.15x = 13,710.44 × 5,397.80
  4. Step 4: Simplify right side
    9,935.15x = 74,006,157.97
  5. Step 5: Solve for x
    x = 74,006,157.97/9,935.15
  6. Step 6: Final answer
    x = 7,448.93

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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.