Home / 14,178.16-21,270.30-4,318.21

Finding the Fourth Proportional to 14,178.16, 21,270.30 and 4,318.21

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Solution

The fourth proportional to 14,178.16, 21,270.30 and 4,318.21 is: 6,478.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,178.16 : 21,270.30 = 4,318.21 : x
  2. Step 2: Convert to fraction form
    14,178.16/21,270.30 = 4,318.21/x
  3. Step 3: Cross multiply
    14,178.16x = 21,270.30 × 4,318.21
  4. Step 4: Simplify right side
    14,178.16x = 91,849,622.16
  5. Step 5: Solve for x
    x = 91,849,622.16/14,178.16
  6. Step 6: Final answer
    x = 6,478.25

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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.