Home / 8,159.24-11,254.74-7,113.80

Finding the Fourth Proportional to 8,159.24, 11,254.74 and 7,113.80

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Solution

The fourth proportional to 8,159.24, 11,254.74 and 7,113.80 is: 9,812.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,159.24 : 11,254.74 = 7,113.80 : x
  2. Step 2: Convert to fraction form
    8,159.24/11,254.74 = 7,113.80/x
  3. Step 3: Cross multiply
    8,159.24x = 11,254.74 × 7,113.80
  4. Step 4: Simplify right side
    8,159.24x = 80,063,969.41
  5. Step 5: Solve for x
    x = 80,063,969.41/8,159.24
  6. Step 6: Final answer
    x = 9,812.67

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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.