Home / 11,219.81-15,477.55-6,741.90

Finding the Fourth Proportional to 11,219.81, 15,477.55 and 6,741.90

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Solution

The fourth proportional to 11,219.81, 15,477.55 and 6,741.90 is: 9,300.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,219.81 : 15,477.55 = 6,741.90 : x
  2. Step 2: Convert to fraction form
    11,219.81/15,477.55 = 6,741.90/x
  3. Step 3: Cross multiply
    11,219.81x = 15,477.55 × 6,741.90
  4. Step 4: Simplify right side
    11,219.81x = 104,348,077.49
  5. Step 5: Solve for x
    x = 104,348,077.49/11,219.81
  6. Step 6: Final answer
    x = 9,300.35

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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.