Home / 14,089.20-21,158.10-7,528.20

Finding the Fourth Proportional to 14,089.20, 21,158.10 and 7,528.20

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Solution

The fourth proportional to 14,089.20, 21,158.10 and 7,528.20 is: 11,305.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,089.20 : 21,158.10 = 7,528.20 : x
  2. Step 2: Convert to fraction form
    14,089.20/21,158.10 = 7,528.20/x
  3. Step 3: Cross multiply
    14,089.20x = 21,158.10 × 7,528.20
  4. Step 4: Simplify right side
    14,089.20x = 159,282,408.42
  5. Step 5: Solve for x
    x = 159,282,408.42/14,089.20
  6. Step 6: Final answer
    x = 11,305.28

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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.