Home / 14,247.72-21,274.29-12,757.32

Finding the Fourth Proportional to 14,247.72, 21,274.29 and 12,757.32

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Solution

The fourth proportional to 14,247.72, 21,274.29 and 12,757.32 is: 19,048.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,247.72 : 21,274.29 = 12,757.32 : x
  2. Step 2: Convert to fraction form
    14,247.72/21,274.29 = 12,757.32/x
  3. Step 3: Cross multiply
    14,247.72x = 21,274.29 × 12,757.32
  4. Step 4: Simplify right side
    14,247.72x = 271,402,925.30
  5. Step 5: Solve for x
    x = 271,402,925.30/14,247.72
  6. Step 6: Final answer
    x = 19,048.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.