Home / 14,417.28-21,614.88-6,620.64

Finding the Fourth Proportional to 14,417.28, 21,614.88 and 6,620.64

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Solution

The fourth proportional to 14,417.28, 21,614.88 and 6,620.64 is: 9,925.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,417.28 : 21,614.88 = 6,620.64 : x
  2. Step 2: Convert to fraction form
    14,417.28/21,614.88 = 6,620.64/x
  3. Step 3: Cross multiply
    14,417.28x = 21,614.88 × 6,620.64
  4. Step 4: Simplify right side
    14,417.28x = 143,104,339.12
  5. Step 5: Solve for x
    x = 143,104,339.12/14,417.28
  6. Step 6: Final answer
    x = 9,925.89

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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.