Home / 14,780.02-20,396.64-8,815.16

Finding the Fourth Proportional to 14,780.02, 20,396.64 and 8,815.16

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Solution

The fourth proportional to 14,780.02, 20,396.64 and 8,815.16 is: 12,165.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,780.02 : 20,396.64 = 8,815.16 : x
  2. Step 2: Convert to fraction form
    14,780.02/20,396.64 = 8,815.16/x
  3. Step 3: Cross multiply
    14,780.02x = 20,396.64 × 8,815.16
  4. Step 4: Simplify right side
    14,780.02x = 179,799,645.06
  5. Step 5: Solve for x
    x = 179,799,645.06/14,780.02
  6. Step 6: Final answer
    x = 12,165.05

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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.