Home / 15,503.13-21,356.35-11,241.67

Finding the Fourth Proportional to 15,503.13, 21,356.35 and 11,241.67

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Solution

The fourth proportional to 15,503.13, 21,356.35 and 11,241.67 is: 15,485.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,503.13 : 21,356.35 = 11,241.67 : x
  2. Step 2: Convert to fraction form
    15,503.13/21,356.35 = 11,241.67/x
  3. Step 3: Cross multiply
    15,503.13x = 21,356.35 × 11,241.67
  4. Step 4: Simplify right side
    15,503.13x = 240,081,039.10
  5. Step 5: Solve for x
    x = 240,081,039.10/15,503.13
  6. Step 6: Final answer
    x = 15,485.97

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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.