Home / 14,100.80-21,154.40-8,254.40

Finding the Fourth Proportional to 14,100.80, 21,154.40 and 8,254.40

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Solution

The fourth proportional to 14,100.80, 21,154.40 and 8,254.40 is: 12,383.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,100.80 : 21,154.40 = 8,254.40 : x
  2. Step 2: Convert to fraction form
    14,100.80/21,154.40 = 8,254.40/x
  3. Step 3: Cross multiply
    14,100.80x = 21,154.40 × 8,254.40
  4. Step 4: Simplify right side
    14,100.80x = 174,616,879.36
  5. Step 5: Solve for x
    x = 174,616,879.36/14,100.80
  6. Step 6: Final answer
    x = 12,383.47

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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.