Home / 14,178.66-21,271.06-4,318.72

Finding the Fourth Proportional to 14,178.66, 21,271.06 and 4,318.72

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Solution

The fourth proportional to 14,178.66, 21,271.06 and 4,318.72 is: 6,479.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,178.66 : 21,271.06 = 4,318.72 : x
  2. Step 2: Convert to fraction form
    14,178.66/21,271.06 = 4,318.72/x
  3. Step 3: Cross multiply
    14,178.66x = 21,271.06 × 4,318.72
  4. Step 4: Simplify right side
    14,178.66x = 91,863,752.24
  5. Step 5: Solve for x
    x = 91,863,752.24/14,178.66
  6. Step 6: Final answer
    x = 6,479.02

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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.