Home / 14,293.80-21,411.90-8,130.60

Finding the Fourth Proportional to 14,293.80, 21,411.90 and 8,130.60

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Solution

The fourth proportional to 14,293.80, 21,411.90 and 8,130.60 is: 12,179.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,293.80 : 21,411.90 = 8,130.60 : x
  2. Step 2: Convert to fraction form
    14,293.80/21,411.90 = 8,130.60/x
  3. Step 3: Cross multiply
    14,293.80x = 21,411.90 × 8,130.60
  4. Step 4: Simplify right side
    14,293.80x = 174,091,594.14
  5. Step 5: Solve for x
    x = 174,091,594.14/14,293.80
  6. Step 6: Final answer
    x = 12,179.52

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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.