Home / 8,015.40-11,061.57-4,430.79

Finding the Fourth Proportional to 8,015.40, 11,061.57 and 4,430.79

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Solution

The fourth proportional to 8,015.40, 11,061.57 and 4,430.79 is: 6,114.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,015.40 : 11,061.57 = 4,430.79 : x
  2. Step 2: Convert to fraction form
    8,015.40/11,061.57 = 4,430.79/x
  3. Step 3: Cross multiply
    8,015.40x = 11,061.57 × 4,430.79
  4. Step 4: Simplify right side
    8,015.40x = 49,011,493.74
  5. Step 5: Solve for x
    x = 49,011,493.74/8,015.40
  6. Step 6: Final answer
    x = 6,114.67

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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.