Home / 14,015.99-21,011.69-6,622.58

Finding the Fourth Proportional to 14,015.99, 21,011.69 and 6,622.58

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Solution

The fourth proportional to 14,015.99, 21,011.69 and 6,622.58 is: 9,928.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,015.99 : 21,011.69 = 6,622.58 : x
  2. Step 2: Convert to fraction form
    14,015.99/21,011.69 = 6,622.58/x
  3. Step 3: Cross multiply
    14,015.99x = 21,011.69 × 6,622.58
  4. Step 4: Simplify right side
    14,015.99x = 139,151,459.79
  5. Step 5: Solve for x
    x = 139,151,459.79/14,015.99
  6. Step 6: Final answer
    x = 9,928.05

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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.