Home / 15,441.68-21,309-9,473.60

Finding the Fourth Proportional to 15,441.68, 21,309 and 9,473.60

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Solution

The fourth proportional to 15,441.68, 21,309 and 9,473.60 is: 13,073.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,441.68 : 21,309 = 9,473.60 : x
  2. Step 2: Convert to fraction form
    15,441.68/21,309 = 9,473.60/x
  3. Step 3: Cross multiply
    15,441.68x = 21,309 × 9,473.60
  4. Step 4: Simplify right side
    15,441.68x = 201,872,942.40
  5. Step 5: Solve for x
    x = 201,872,942.40/15,441.68
  6. Step 6: Final answer
    x = 13,073.25

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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.