Home / 15,473.28-21,355.20-9,810.84

Finding the Fourth Proportional to 15,473.28, 21,355.20 and 9,810.84

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Solution

The fourth proportional to 15,473.28, 21,355.20 and 9,810.84 is: 13,540.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,473.28 : 21,355.20 = 9,810.84 : x
  2. Step 2: Convert to fraction form
    15,473.28/21,355.20 = 9,810.84/x
  3. Step 3: Cross multiply
    15,473.28x = 21,355.20 × 9,810.84
  4. Step 4: Simplify right side
    15,473.28x = 209,512,450.37
  5. Step 5: Solve for x
    x = 209,512,450.37/15,473.28
  6. Step 6: Final answer
    x = 13,540.27

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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.