Home / 14,208.90-21,287.89-8,659.32

Finding the Fourth Proportional to 14,208.90, 21,287.89 and 8,659.32

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Solution

The fourth proportional to 14,208.90, 21,287.89 and 8,659.32 is: 12,973.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,208.90 : 21,287.89 = 8,659.32 : x
  2. Step 2: Convert to fraction form
    14,208.90/21,287.89 = 8,659.32/x
  3. Step 3: Cross multiply
    14,208.90x = 21,287.89 × 8,659.32
  4. Step 4: Simplify right side
    14,208.90x = 184,338,651.63
  5. Step 5: Solve for x
    x = 184,338,651.63/14,208.90
  6. Step 6: Final answer
    x = 12,973.46

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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.