Home / 15,468.28-21,348.30-9,805.84

Finding the Fourth Proportional to 15,468.28, 21,348.30 and 9,805.84

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Solution

The fourth proportional to 15,468.28, 21,348.30 and 9,805.84 is: 13,533.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,468.28 : 21,348.30 = 9,805.84 : x
  2. Step 2: Convert to fraction form
    15,468.28/21,348.30 = 9,805.84/x
  3. Step 3: Cross multiply
    15,468.28x = 21,348.30 × 9,805.84
  4. Step 4: Simplify right side
    15,468.28x = 209,338,014.07
  5. Step 5: Solve for x
    x = 209,338,014.07/15,468.28
  6. Step 6: Final answer
    x = 13,533.37

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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.