Home / 15,347.58-21,173.66-8,631.67

Finding the Fourth Proportional to 15,347.58, 21,173.66 and 8,631.67

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Solution

The fourth proportional to 15,347.58, 21,173.66 and 8,631.67 is: 11,908.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,347.58 : 21,173.66 = 8,631.67 : x
  2. Step 2: Convert to fraction form
    15,347.58/21,173.66 = 8,631.67/x
  3. Step 3: Cross multiply
    15,347.58x = 21,173.66 × 8,631.67
  4. Step 4: Simplify right side
    15,347.58x = 182,764,014.46
  5. Step 5: Solve for x
    x = 182,764,014.46/15,347.58
  6. Step 6: Final answer
    x = 11,908.33

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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.