Home / 15,492.03-21,379.26-8,777.49

Finding the Fourth Proportional to 15,492.03, 21,379.26 and 8,777.49

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Solution

The fourth proportional to 15,492.03, 21,379.26 and 8,777.49 is: 12,113.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,492.03 : 21,379.26 = 8,777.49 : x
  2. Step 2: Convert to fraction form
    15,492.03/21,379.26 = 8,777.49/x
  3. Step 3: Cross multiply
    15,492.03x = 21,379.26 × 8,777.49
  4. Step 4: Simplify right side
    15,492.03x = 187,656,240.86
  5. Step 5: Solve for x
    x = 187,656,240.86/15,492.03
  6. Step 6: Final answer
    x = 12,113.08

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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.