Home / 14,203.02-21,280.98-8,639.53

Finding the Fourth Proportional to 14,203.02, 21,280.98 and 8,639.53

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Solution

The fourth proportional to 14,203.02, 21,280.98 and 8,639.53 is: 12,944.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,203.02 : 21,280.98 = 8,639.53 : x
  2. Step 2: Convert to fraction form
    14,203.02/21,280.98 = 8,639.53/x
  3. Step 3: Cross multiply
    14,203.02x = 21,280.98 × 8,639.53
  4. Step 4: Simplify right side
    14,203.02x = 183,857,665.14
  5. Step 5: Solve for x
    x = 183,857,665.14/14,203.02
  6. Step 6: Final answer
    x = 12,944.97

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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.