Home / 15,365.13-21,205.94-8,993.67

Finding the Fourth Proportional to 15,365.13, 21,205.94 and 8,993.67

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Solution

The fourth proportional to 15,365.13, 21,205.94 and 8,993.67 is: 12,412.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,365.13 : 21,205.94 = 8,993.67 : x
  2. Step 2: Convert to fraction form
    15,365.13/21,205.94 = 8,993.67/x
  3. Step 3: Cross multiply
    15,365.13x = 21,205.94 × 8,993.67
  4. Step 4: Simplify right side
    15,365.13x = 190,719,181.43
  5. Step 5: Solve for x
    x = 190,719,181.43/15,365.13
  6. Step 6: Final answer
    x = 12,412.47

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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.