Home / 14,178.58-21,271.05-4,318.64

Finding the Fourth Proportional to 14,178.58, 21,271.05 and 4,318.64

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Solution

The fourth proportional to 14,178.58, 21,271.05 and 4,318.64 is: 6,478.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,178.58 : 21,271.05 = 4,318.64 : x
  2. Step 2: Convert to fraction form
    14,178.58/21,271.05 = 4,318.64/x
  3. Step 3: Cross multiply
    14,178.58x = 21,271.05 × 4,318.64
  4. Step 4: Simplify right side
    14,178.58x = 91,862,007.37
  5. Step 5: Solve for x
    x = 91,862,007.37/14,178.58
  6. Step 6: Final answer
    x = 6,478.93

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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.