Home / 15,431.79-23,121.77-9,602.67

Finding the Fourth Proportional to 15,431.79, 23,121.77 and 9,602.67

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Solution

The fourth proportional to 15,431.79, 23,121.77 and 9,602.67 is: 14,387.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,431.79 : 23,121.77 = 9,602.67 : x
  2. Step 2: Convert to fraction form
    15,431.79/23,121.77 = 9,602.67/x
  3. Step 3: Cross multiply
    15,431.79x = 23,121.77 × 9,602.67
  4. Step 4: Simplify right side
    15,431.79x = 222,030,679.11
  5. Step 5: Solve for x
    x = 222,030,679.11/15,431.79
  6. Step 6: Final answer
    x = 14,387.88

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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.