Home / 9,421.29-12,996.47-6,395.36

Finding the Fourth Proportional to 9,421.29, 12,996.47 and 6,395.36

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Solution

The fourth proportional to 9,421.29, 12,996.47 and 6,395.36 is: 8,822.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,421.29 : 12,996.47 = 6,395.36 : x
  2. Step 2: Convert to fraction form
    9,421.29/12,996.47 = 6,395.36/x
  3. Step 3: Cross multiply
    9,421.29x = 12,996.47 × 6,395.36
  4. Step 4: Simplify right side
    9,421.29x = 83,117,055.39
  5. Step 5: Solve for x
    x = 83,117,055.39/9,421.29
  6. Step 6: Final answer
    x = 8,822.26

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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.