Home / 14,012.64-21,008.49-8,464.72

Finding the Fourth Proportional to 14,012.64, 21,008.49 and 8,464.72

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Solution

The fourth proportional to 14,012.64, 21,008.49 and 8,464.72 is: 12,690.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,012.64 : 21,008.49 = 8,464.72 : x
  2. Step 2: Convert to fraction form
    14,012.64/21,008.49 = 8,464.72/x
  3. Step 3: Cross multiply
    14,012.64x = 21,008.49 × 8,464.72
  4. Step 4: Simplify right side
    14,012.64x = 177,830,985.47
  5. Step 5: Solve for x
    x = 177,830,985.47/14,012.64
  6. Step 6: Final answer
    x = 12,690.76

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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.