Home / 10,859.88-14,987.28-6,144.60

Finding the Fourth Proportional to 10,859.88, 14,987.28 and 6,144.60

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Solution

The fourth proportional to 10,859.88, 14,987.28 and 6,144.60 is: 8,479.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,859.88 : 14,987.28 = 6,144.60 : x
  2. Step 2: Convert to fraction form
    10,859.88/14,987.28 = 6,144.60/x
  3. Step 3: Cross multiply
    10,859.88x = 14,987.28 × 6,144.60
  4. Step 4: Simplify right side
    10,859.88x = 92,090,840.69
  5. Step 5: Solve for x
    x = 92,090,840.69/10,859.88
  6. Step 6: Final answer
    x = 8,479.91

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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.