Home / 9,159.94-12,638.59-6,329.80

Finding the Fourth Proportional to 9,159.94, 12,638.59 and 6,329.80

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Solution

The fourth proportional to 9,159.94, 12,638.59 and 6,329.80 is: 8,733.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,159.94 : 12,638.59 = 6,329.80 : x
  2. Step 2: Convert to fraction form
    9,159.94/12,638.59 = 6,329.80/x
  3. Step 3: Cross multiply
    9,159.94x = 12,638.59 × 6,329.80
  4. Step 4: Simplify right side
    9,159.94x = 79,999,746.98
  5. Step 5: Solve for x
    x = 79,999,746.98/9,159.94
  6. Step 6: Final answer
    x = 8,733.65

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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.