Home / 11,885.86-17,828.77-4,869.15

Finding the Fourth Proportional to 11,885.86, 17,828.77 and 4,869.15

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Solution

The fourth proportional to 11,885.86, 17,828.77 and 4,869.15 is: 7,303.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,885.86 : 17,828.77 = 4,869.15 : x
  2. Step 2: Convert to fraction form
    11,885.86/17,828.77 = 4,869.15/x
  3. Step 3: Cross multiply
    11,885.86x = 17,828.77 × 4,869.15
  4. Step 4: Simplify right side
    11,885.86x = 86,810,955.45
  5. Step 5: Solve for x
    x = 86,810,955.45/11,885.86
  6. Step 6: Final answer
    x = 7,303.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.