Home / 14,281.60-21,422.40-9,356.80

Finding the Fourth Proportional to 14,281.60, 21,422.40 and 9,356.80

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Solution

The fourth proportional to 14,281.60, 21,422.40 and 9,356.80 is: 14,035.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,281.60 : 21,422.40 = 9,356.80 : x
  2. Step 2: Convert to fraction form
    14,281.60/21,422.40 = 9,356.80/x
  3. Step 3: Cross multiply
    14,281.60x = 21,422.40 × 9,356.80
  4. Step 4: Simplify right side
    14,281.60x = 200,445,112.32
  5. Step 5: Solve for x
    x = 200,445,112.32/14,281.60
  6. Step 6: Final answer
    x = 14,035.20

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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.