Home / 11,558.20-15,946-7,581.52

Finding the Fourth Proportional to 11,558.20, 15,946 and 7,581.52

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Solution

The fourth proportional to 11,558.20, 15,946 and 7,581.52 is: 10,459.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,558.20 : 15,946 = 7,581.52 : x
  2. Step 2: Convert to fraction form
    11,558.20/15,946 = 7,581.52/x
  3. Step 3: Cross multiply
    11,558.20x = 15,946 × 7,581.52
  4. Step 4: Simplify right side
    11,558.20x = 120,894,917.92
  5. Step 5: Solve for x
    x = 120,894,917.92/11,558.20
  6. Step 6: Final answer
    x = 10,459.67

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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.