Home / 13,927.71-20,904.83-8,646.74

Finding the Fourth Proportional to 13,927.71, 20,904.83 and 8,646.74

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Solution

The fourth proportional to 13,927.71, 20,904.83 and 8,646.74 is: 12,978.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,927.71 : 20,904.83 = 8,646.74 : x
  2. Step 2: Convert to fraction form
    13,927.71/20,904.83 = 8,646.74/x
  3. Step 3: Cross multiply
    13,927.71x = 20,904.83 × 8,646.74
  4. Step 4: Simplify right side
    13,927.71x = 180,758,482.00
  5. Step 5: Solve for x
    x = 180,758,482.00/13,927.71
  6. Step 6: Final answer
    x = 12,978.33

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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.