Home / 14,178.34-21,242.96-8,620.02

Finding the Fourth Proportional to 14,178.34, 21,242.96 and 8,620.02

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Solution

The fourth proportional to 14,178.34, 21,242.96 and 8,620.02 is: 12,915.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,178.34 : 21,242.96 = 8,620.02 : x
  2. Step 2: Convert to fraction form
    14,178.34/21,242.96 = 8,620.02/x
  3. Step 3: Cross multiply
    14,178.34x = 21,242.96 × 8,620.02
  4. Step 4: Simplify right side
    14,178.34x = 183,114,729.28
  5. Step 5: Solve for x
    x = 183,114,729.28/14,178.34
  6. Step 6: Final answer
    x = 12,915.10

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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.