Home / 14,283.80-21,425.70-9,618.20

Finding the Fourth Proportional to 14,283.80, 21,425.70 and 9,618.20

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Solution

The fourth proportional to 14,283.80, 21,425.70 and 9,618.20 is: 14,427.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,283.80 : 21,425.70 = 9,618.20 : x
  2. Step 2: Convert to fraction form
    14,283.80/21,425.70 = 9,618.20/x
  3. Step 3: Cross multiply
    14,283.80x = 21,425.70 × 9,618.20
  4. Step 4: Simplify right side
    14,283.80x = 206,076,667.74
  5. Step 5: Solve for x
    x = 206,076,667.74/14,283.80
  6. Step 6: Final answer
    x = 14,427.30

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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.