Home / 14,857.65-20,503.79-8,889.57

Finding the Fourth Proportional to 14,857.65, 20,503.79 and 8,889.57

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Solution

The fourth proportional to 14,857.65, 20,503.79 and 8,889.57 is: 12,267.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,857.65 : 20,503.79 = 8,889.57 : x
  2. Step 2: Convert to fraction form
    14,857.65/20,503.79 = 8,889.57/x
  3. Step 3: Cross multiply
    14,857.65x = 20,503.79 × 8,889.57
  4. Step 4: Simplify right side
    14,857.65x = 182,269,832.02
  5. Step 5: Solve for x
    x = 182,269,832.02/14,857.65
  6. Step 6: Final answer
    x = 12,267.74

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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.