Home / 12,453.76-18,681.54-4,133.44

Finding the Fourth Proportional to 12,453.76, 18,681.54 and 4,133.44

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Solution

The fourth proportional to 12,453.76, 18,681.54 and 4,133.44 is: 6,200.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,453.76 : 18,681.54 = 4,133.44 : x
  2. Step 2: Convert to fraction form
    12,453.76/18,681.54 = 4,133.44/x
  3. Step 3: Cross multiply
    12,453.76x = 18,681.54 × 4,133.44
  4. Step 4: Simplify right side
    12,453.76x = 77,219,024.70
  5. Step 5: Solve for x
    x = 77,219,024.70/12,453.76
  6. Step 6: Final answer
    x = 6,200.46

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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.