Home / 9,118.34-12,593.69-6,128.99

Finding the Fourth Proportional to 9,118.34, 12,593.69 and 6,128.99

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Solution

The fourth proportional to 9,118.34, 12,593.69 and 6,128.99 is: 8,464.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,118.34 : 12,593.69 = 6,128.99 : x
  2. Step 2: Convert to fraction form
    9,118.34/12,593.69 = 6,128.99/x
  3. Step 3: Cross multiply
    9,118.34x = 12,593.69 × 6,128.99
  4. Step 4: Simplify right side
    9,118.34x = 77,186,599.65
  5. Step 5: Solve for x
    x = 77,186,599.65/9,118.34
  6. Step 6: Final answer
    x = 8,464.98

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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.