Home / 14,284.83-19,720.80-8,620.59

Finding the Fourth Proportional to 14,284.83, 19,720.80 and 8,620.59

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Solution

The fourth proportional to 14,284.83, 19,720.80 and 8,620.59 is: 11,901.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,284.83 : 19,720.80 = 8,620.59 : x
  2. Step 2: Convert to fraction form
    14,284.83/19,720.80 = 8,620.59/x
  3. Step 3: Cross multiply
    14,284.83x = 19,720.80 × 8,620.59
  4. Step 4: Simplify right side
    14,284.83x = 170,004,931.27
  5. Step 5: Solve for x
    x = 170,004,931.27/14,284.83
  6. Step 6: Final answer
    x = 11,901.08

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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.