Home / 14,155.95-21,210.83-8,610.99

Finding the Fourth Proportional to 14,155.95, 21,210.83 and 8,610.99

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Solution

The fourth proportional to 14,155.95, 21,210.83 and 8,610.99 is: 12,902.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,155.95 : 21,210.83 = 8,610.99 : x
  2. Step 2: Convert to fraction form
    14,155.95/21,210.83 = 8,610.99/x
  3. Step 3: Cross multiply
    14,155.95x = 21,210.83 × 8,610.99
  4. Step 4: Simplify right side
    14,155.95x = 182,646,245.02
  5. Step 5: Solve for x
    x = 182,646,245.02/14,155.95
  6. Step 6: Final answer
    x = 12,902.44

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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.