Home / 12,607.02-18,901.78-5,583.21

Finding the Fourth Proportional to 12,607.02, 18,901.78 and 5,583.21

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Solution

The fourth proportional to 12,607.02, 18,901.78 and 5,583.21 is: 8,370.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,607.02 : 18,901.78 = 5,583.21 : x
  2. Step 2: Convert to fraction form
    12,607.02/18,901.78 = 5,583.21/x
  3. Step 3: Cross multiply
    12,607.02x = 18,901.78 × 5,583.21
  4. Step 4: Simplify right side
    12,607.02x = 105,532,603.62
  5. Step 5: Solve for x
    x = 105,532,603.62/12,607.02
  6. Step 6: Final answer
    x = 8,370.94

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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.