Home / 12,145.02-18,217.51-4,751.64

Finding the Fourth Proportional to 12,145.02, 18,217.51 and 4,751.64

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Solution

The fourth proportional to 12,145.02, 18,217.51 and 4,751.64 is: 7,127.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,145.02 : 18,217.51 = 4,751.64 : x
  2. Step 2: Convert to fraction form
    12,145.02/18,217.51 = 4,751.64/x
  3. Step 3: Cross multiply
    12,145.02x = 18,217.51 × 4,751.64
  4. Step 4: Simplify right side
    12,145.02x = 86,563,049.22
  5. Step 5: Solve for x
    x = 86,563,049.22/12,145.02
  6. Step 6: Final answer
    x = 7,127.45

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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.