Home / 14,099.52-21,120.51-6,681.45

Finding the Fourth Proportional to 14,099.52, 21,120.51 and 6,681.45

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Solution

The fourth proportional to 14,099.52, 21,120.51 and 6,681.45 is: 10,008.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,099.52 : 21,120.51 = 6,681.45 : x
  2. Step 2: Convert to fraction form
    14,099.52/21,120.51 = 6,681.45/x
  3. Step 3: Cross multiply
    14,099.52x = 21,120.51 × 6,681.45
  4. Step 4: Simplify right side
    14,099.52x = 141,115,631.54
  5. Step 5: Solve for x
    x = 141,115,631.54/14,099.52
  6. Step 6: Final answer
    x = 10,008.54

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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.