Home / 15,192.12-20,965.08-8,477.67

Finding the Fourth Proportional to 15,192.12, 20,965.08 and 8,477.67

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Solution

The fourth proportional to 15,192.12, 20,965.08 and 8,477.67 is: 11,699.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,192.12 : 20,965.08 = 8,477.67 : x
  2. Step 2: Convert to fraction form
    15,192.12/20,965.08 = 8,477.67/x
  3. Step 3: Cross multiply
    15,192.12x = 20,965.08 × 8,477.67
  4. Step 4: Simplify right side
    15,192.12x = 177,735,029.76
  5. Step 5: Solve for x
    x = 177,735,029.76/15,192.12
  6. Step 6: Final answer
    x = 11,699.16

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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.