Home / 14,224.64-21,358.88-12,679.16

Finding the Fourth Proportional to 14,224.64, 21,358.88 and 12,679.16

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Solution

The fourth proportional to 14,224.64, 21,358.88 and 12,679.16 is: 19,038.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,224.64 : 21,358.88 = 12,679.16 : x
  2. Step 2: Convert to fraction form
    14,224.64/21,358.88 = 12,679.16/x
  3. Step 3: Cross multiply
    14,224.64x = 21,358.88 × 12,679.16
  4. Step 4: Simplify right side
    14,224.64x = 270,812,656.94
  5. Step 5: Solve for x
    x = 270,812,656.94/14,224.64
  6. Step 6: Final answer
    x = 19,038.28

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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.