Home / 12,553.19-18,828.87-5,155.64

Finding the Fourth Proportional to 12,553.19, 18,828.87 and 5,155.64

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Solution

The fourth proportional to 12,553.19, 18,828.87 and 5,155.64 is: 7,733.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,553.19 : 18,828.87 = 5,155.64 : x
  2. Step 2: Convert to fraction form
    12,553.19/18,828.87 = 5,155.64/x
  3. Step 3: Cross multiply
    12,553.19x = 18,828.87 × 5,155.64
  4. Step 4: Simplify right side
    12,553.19x = 97,074,875.33
  5. Step 5: Solve for x
    x = 97,074,875.33/12,553.19
  6. Step 6: Final answer
    x = 7,733.08

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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.