Home / 14,070.71-21,089.97-6,664.68

Finding the Fourth Proportional to 14,070.71, 21,089.97 and 6,664.68

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Solution

The fourth proportional to 14,070.71, 21,089.97 and 6,664.68 is: 9,989.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,070.71 : 21,089.97 = 6,664.68 : x
  2. Step 2: Convert to fraction form
    14,070.71/21,089.97 = 6,664.68/x
  3. Step 3: Cross multiply
    14,070.71x = 21,089.97 × 6,664.68
  4. Step 4: Simplify right side
    14,070.71x = 140,557,901.26
  5. Step 5: Solve for x
    x = 140,557,901.26/14,070.71
  6. Step 6: Final answer
    x = 9,989.39

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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.