Home / 15,566.40-21,481.47-8,492.67

Finding the Fourth Proportional to 15,566.40, 21,481.47 and 8,492.67

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Solution

The fourth proportional to 15,566.40, 21,481.47 and 8,492.67 is: 11,719.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,566.40 : 21,481.47 = 8,492.67 : x
  2. Step 2: Convert to fraction form
    15,566.40/21,481.47 = 8,492.67/x
  3. Step 3: Cross multiply
    15,566.40x = 21,481.47 × 8,492.67
  4. Step 4: Simplify right side
    15,566.40x = 182,435,035.82
  5. Step 5: Solve for x
    x = 182,435,035.82/15,566.40
  6. Step 6: Final answer
    x = 11,719.80

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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.