Home / 10,766.36-14,860.51-6,989.32

Finding the Fourth Proportional to 10,766.36, 14,860.51 and 6,989.32

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Solution

The fourth proportional to 10,766.36, 14,860.51 and 6,989.32 is: 9,647.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,766.36 : 14,860.51 = 6,989.32 : x
  2. Step 2: Convert to fraction form
    10,766.36/14,860.51 = 6,989.32/x
  3. Step 3: Cross multiply
    10,766.36x = 14,860.51 × 6,989.32
  4. Step 4: Simplify right side
    10,766.36x = 103,864,859.75
  5. Step 5: Solve for x
    x = 103,864,859.75/10,766.36
  6. Step 6: Final answer
    x = 9,647.17

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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.