Home / 11,128.63-16,692.95-8,926.51

Finding the Fourth Proportional to 11,128.63, 16,692.95 and 8,926.51

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Solution

The fourth proportional to 11,128.63, 16,692.95 and 8,926.51 is: 13,389.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,128.63 : 16,692.95 = 8,926.51 : x
  2. Step 2: Convert to fraction form
    11,128.63/16,692.95 = 8,926.51/x
  3. Step 3: Cross multiply
    11,128.63x = 16,692.95 × 8,926.51
  4. Step 4: Simplify right side
    11,128.63x = 149,009,785.10
  5. Step 5: Solve for x
    x = 149,009,785.10/11,128.63
  6. Step 6: Final answer
    x = 13,389.77

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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.