Home / 14,938.86-20,616.21-8,225.12

Finding the Fourth Proportional to 14,938.86, 20,616.21 and 8,225.12

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Solution

The fourth proportional to 14,938.86, 20,616.21 and 8,225.12 is: 11,350.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,938.86 : 20,616.21 = 8,225.12 : x
  2. Step 2: Convert to fraction form
    14,938.86/20,616.21 = 8,225.12/x
  3. Step 3: Cross multiply
    14,938.86x = 20,616.21 × 8,225.12
  4. Step 4: Simplify right side
    14,938.86x = 169,570,698.11
  5. Step 5: Solve for x
    x = 169,570,698.11/14,938.86
  6. Step 6: Final answer
    x = 11,350.98

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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.