Home / 14,893.71-20,539.61-10,120.81

Finding the Fourth Proportional to 14,893.71, 20,539.61 and 10,120.81

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Solution

The fourth proportional to 14,893.71, 20,539.61 and 10,120.81 is: 13,957.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,893.71 : 20,539.61 = 10,120.81 : x
  2. Step 2: Convert to fraction form
    14,893.71/20,539.61 = 10,120.81/x
  3. Step 3: Cross multiply
    14,893.71x = 20,539.61 × 10,120.81
  4. Step 4: Simplify right side
    14,893.71x = 207,877,439.68
  5. Step 5: Solve for x
    x = 207,877,439.68/14,893.71
  6. Step 6: Final answer
    x = 13,957.40

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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.