Home / 13,927.52-19,219.08-8,262.78

Finding the Fourth Proportional to 13,927.52, 19,219.08 and 8,262.78

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Solution

The fourth proportional to 13,927.52, 19,219.08 and 8,262.78 is: 11,402.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,927.52 : 19,219.08 = 8,262.78 : x
  2. Step 2: Convert to fraction form
    13,927.52/19,219.08 = 8,262.78/x
  3. Step 3: Cross multiply
    13,927.52x = 19,219.08 × 8,262.78
  4. Step 4: Simplify right side
    13,927.52x = 158,803,029.84
  5. Step 5: Solve for x
    x = 158,803,029.84/13,927.52
  6. Step 6: Final answer
    x = 11,402.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.