Home / 13,234.78-18,263.64-7,266.40

Finding the Fourth Proportional to 13,234.78, 18,263.64 and 7,266.40

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Solution

The fourth proportional to 13,234.78, 18,263.64 and 7,266.40 is: 10,027.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,234.78 : 18,263.64 = 7,266.40 : x
  2. Step 2: Convert to fraction form
    13,234.78/18,263.64 = 7,266.40/x
  3. Step 3: Cross multiply
    13,234.78x = 18,263.64 × 7,266.40
  4. Step 4: Simplify right side
    13,234.78x = 132,710,913.70
  5. Step 5: Solve for x
    x = 132,710,913.70/13,234.78
  6. Step 6: Final answer
    x = 10,027.44

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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.