Home / 8,423.09-11,621.48-5,440.67

Finding the Fourth Proportional to 8,423.09, 11,621.48 and 5,440.67

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Solution

The fourth proportional to 8,423.09, 11,621.48 and 5,440.67 is: 7,506.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,423.09 : 11,621.48 = 5,440.67 : x
  2. Step 2: Convert to fraction form
    8,423.09/11,621.48 = 5,440.67/x
  3. Step 3: Cross multiply
    8,423.09x = 11,621.48 × 5,440.67
  4. Step 4: Simplify right side
    8,423.09x = 63,228,595.86
  5. Step 5: Solve for x
    x = 63,228,595.86/8,423.09
  6. Step 6: Final answer
    x = 7,506.58

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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.