Home / 26,123.78-39,165.57-12,965.94

Finding the Fourth Proportional to 26,123.78, 39,165.57 and 12,965.94

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Solution

The fourth proportional to 26,123.78, 39,165.57 and 12,965.94 is: 19,438.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,123.78 : 39,165.57 = 12,965.94 : x
  2. Step 2: Convert to fraction form
    26,123.78/39,165.57 = 12,965.94/x
  3. Step 3: Cross multiply
    26,123.78x = 39,165.57 × 12,965.94
  4. Step 4: Simplify right side
    26,123.78x = 507,818,430.69
  5. Step 5: Solve for x
    x = 507,818,430.69/26,123.78
  6. Step 6: Final answer
    x = 19,438.94

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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.