Home / 9,689.82-13,368.51-6,334.57

Finding the Fourth Proportional to 9,689.82, 13,368.51 and 6,334.57

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Solution

The fourth proportional to 9,689.82, 13,368.51 and 6,334.57 is: 8,739.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,689.82 : 13,368.51 = 6,334.57 : x
  2. Step 2: Convert to fraction form
    9,689.82/13,368.51 = 6,334.57/x
  3. Step 3: Cross multiply
    9,689.82x = 13,368.51 × 6,334.57
  4. Step 4: Simplify right side
    9,689.82x = 84,683,762.39
  5. Step 5: Solve for x
    x = 84,683,762.39/9,689.82
  6. Step 6: Final answer
    x = 8,739.46

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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.