Home / 14,187.60-21,281.40-9,262.80

Finding the Fourth Proportional to 14,187.60, 21,281.40 and 9,262.80

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Solution

The fourth proportional to 14,187.60, 21,281.40 and 9,262.80 is: 13,894.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,187.60 : 21,281.40 = 9,262.80 : x
  2. Step 2: Convert to fraction form
    14,187.60/21,281.40 = 9,262.80/x
  3. Step 3: Cross multiply
    14,187.60x = 21,281.40 × 9,262.80
  4. Step 4: Simplify right side
    14,187.60x = 197,125,351.92
  5. Step 5: Solve for x
    x = 197,125,351.92/14,187.60
  6. Step 6: Final answer
    x = 13,894.20

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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.