Home / 13,994.52-21,000.12-5,235.72

Finding the Fourth Proportional to 13,994.52, 21,000.12 and 5,235.72

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Solution

The fourth proportional to 13,994.52, 21,000.12 and 5,235.72 is: 7,856.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,994.52 : 21,000.12 = 5,235.72 : x
  2. Step 2: Convert to fraction form
    13,994.52/21,000.12 = 5,235.72/x
  3. Step 3: Cross multiply
    13,994.52x = 21,000.12 × 5,235.72
  4. Step 4: Simplify right side
    13,994.52x = 109,950,748.29
  5. Step 5: Solve for x
    x = 109,950,748.29/13,994.52
  6. Step 6: Final answer
    x = 7,856.70

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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.