Home / 14,857.21-20,499.33-8,807.68

Finding the Fourth Proportional to 14,857.21, 20,499.33 and 8,807.68

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Solution

The fourth proportional to 14,857.21, 20,499.33 and 8,807.68 is: 12,152.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,857.21 : 20,499.33 = 8,807.68 : x
  2. Step 2: Convert to fraction form
    14,857.21/20,499.33 = 8,807.68/x
  3. Step 3: Cross multiply
    14,857.21x = 20,499.33 × 8,807.68
  4. Step 4: Simplify right side
    14,857.21x = 180,551,538.85
  5. Step 5: Solve for x
    x = 180,551,538.85/14,857.21
  6. Step 6: Final answer
    x = 12,152.45

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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.