Home / 15,618.21-21,551.01-9,329.25

Finding the Fourth Proportional to 15,618.21, 21,551.01 and 9,329.25

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Solution

The fourth proportional to 15,618.21, 21,551.01 and 9,329.25 is: 12,873.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,618.21 : 21,551.01 = 9,329.25 : x
  2. Step 2: Convert to fraction form
    15,618.21/21,551.01 = 9,329.25/x
  3. Step 3: Cross multiply
    15,618.21x = 21,551.01 × 9,329.25
  4. Step 4: Simplify right side
    15,618.21x = 201,054,713.40
  5. Step 5: Solve for x
    x = 201,054,713.40/15,618.21
  6. Step 6: Final answer
    x = 12,873.10

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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.