Home / 12,554.63-18,821.21-5,154.47

Finding the Fourth Proportional to 12,554.63, 18,821.21 and 5,154.47

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Solution

The fourth proportional to 12,554.63, 18,821.21 and 5,154.47 is: 7,727.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,554.63 : 18,821.21 = 5,154.47 : x
  2. Step 2: Convert to fraction form
    12,554.63/18,821.21 = 5,154.47/x
  3. Step 3: Cross multiply
    12,554.63x = 18,821.21 × 5,154.47
  4. Step 4: Simplify right side
    12,554.63x = 97,013,242.43
  5. Step 5: Solve for x
    x = 97,013,242.43/12,554.63
  6. Step 6: Final answer
    x = 7,727.29

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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.