Home / 10,860.86-14,987.76-6,384.80

Finding the Fourth Proportional to 10,860.86, 14,987.76 and 6,384.80

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Solution

The fourth proportional to 10,860.86, 14,987.76 and 6,384.80 is: 8,810.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,860.86 : 14,987.76 = 6,384.80 : x
  2. Step 2: Convert to fraction form
    10,860.86/14,987.76 = 6,384.80/x
  3. Step 3: Cross multiply
    10,860.86x = 14,987.76 × 6,384.80
  4. Step 4: Simplify right side
    10,860.86x = 95,693,850.05
  5. Step 5: Solve for x
    x = 95,693,850.05/10,860.86
  6. Step 6: Final answer
    x = 8,810.89

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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.