Home / 9,415.34-14,117.66-3,872.58

Finding the Fourth Proportional to 9,415.34, 14,117.66 and 3,872.58

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Solution

The fourth proportional to 9,415.34, 14,117.66 and 3,872.58 is: 5,806.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,415.34 : 14,117.66 = 3,872.58 : x
  2. Step 2: Convert to fraction form
    9,415.34/14,117.66 = 3,872.58/x
  3. Step 3: Cross multiply
    9,415.34x = 14,117.66 × 3,872.58
  4. Step 4: Simplify right side
    9,415.34x = 54,671,767.76
  5. Step 5: Solve for x
    x = 54,671,767.76/9,415.34
  6. Step 6: Final answer
    x = 5,806.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.