Home / 12,750.10-19,103.55-8,365.30

Finding the Fourth Proportional to 12,750.10, 19,103.55 and 8,365.30

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Solution

The fourth proportional to 12,750.10, 19,103.55 and 8,365.30 is: 12,533.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,750.10 : 19,103.55 = 8,365.30 : x
  2. Step 2: Convert to fraction form
    12,750.10/19,103.55 = 8,365.30/x
  3. Step 3: Cross multiply
    12,750.10x = 19,103.55 × 8,365.30
  4. Step 4: Simplify right side
    12,750.10x = 159,806,926.82
  5. Step 5: Solve for x
    x = 159,806,926.82/12,750.10
  6. Step 6: Final answer
    x = 12,533.78

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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.