Home / 12,877.08-19,319.52-5,384.28

Finding the Fourth Proportional to 12,877.08, 19,319.52 and 5,384.28

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Solution

The fourth proportional to 12,877.08, 19,319.52 and 5,384.28 is: 8,078.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,877.08 : 19,319.52 = 5,384.28 : x
  2. Step 2: Convert to fraction form
    12,877.08/19,319.52 = 5,384.28/x
  3. Step 3: Cross multiply
    12,877.08x = 19,319.52 × 5,384.28
  4. Step 4: Simplify right side
    12,877.08x = 104,021,705.15
  5. Step 5: Solve for x
    x = 104,021,705.15/12,877.08
  6. Step 6: Final answer
    x = 8,078.05

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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.