Home / 9,897.32-13,661.34-5,708.36

Finding the Fourth Proportional to 9,897.32, 13,661.34 and 5,708.36

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Solution

The fourth proportional to 9,897.32, 13,661.34 and 5,708.36 is: 7,879.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,897.32 : 13,661.34 = 5,708.36 : x
  2. Step 2: Convert to fraction form
    9,897.32/13,661.34 = 5,708.36/x
  3. Step 3: Cross multiply
    9,897.32x = 13,661.34 × 5,708.36
  4. Step 4: Simplify right side
    9,897.32x = 77,983,846.80
  5. Step 5: Solve for x
    x = 77,983,846.80/9,897.32
  6. Step 6: Final answer
    x = 7,879.29

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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.