Home / 12,304.61-16,981.37-6,999.77

Finding the Fourth Proportional to 12,304.61, 16,981.37 and 6,999.77

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Solution

The fourth proportional to 12,304.61, 16,981.37 and 6,999.77 is: 9,660.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,304.61 : 16,981.37 = 6,999.77 : x
  2. Step 2: Convert to fraction form
    12,304.61/16,981.37 = 6,999.77/x
  3. Step 3: Cross multiply
    12,304.61x = 16,981.37 × 6,999.77
  4. Step 4: Simplify right side
    12,304.61x = 118,865,642.16
  5. Step 5: Solve for x
    x = 118,865,642.16/12,304.61
  6. Step 6: Final answer
    x = 9,660.25

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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.