Home / 15,281.94-21,101.62-9,625.80

Finding the Fourth Proportional to 15,281.94, 21,101.62 and 9,625.80

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Solution

The fourth proportional to 15,281.94, 21,101.62 and 9,625.80 is: 13,291.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,281.94 : 21,101.62 = 9,625.80 : x
  2. Step 2: Convert to fraction form
    15,281.94/21,101.62 = 9,625.80/x
  3. Step 3: Cross multiply
    15,281.94x = 21,101.62 × 9,625.80
  4. Step 4: Simplify right side
    15,281.94x = 203,119,973.80
  5. Step 5: Solve for x
    x = 203,119,973.80/15,281.94
  6. Step 6: Final answer
    x = 13,291.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.