Home / 13,748.58-18,977.85-8,443.89

Finding the Fourth Proportional to 13,748.58, 18,977.85 and 8,443.89

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Solution

The fourth proportional to 13,748.58, 18,977.85 and 8,443.89 is: 11,655.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,748.58 : 18,977.85 = 8,443.89 : x
  2. Step 2: Convert to fraction form
    13,748.58/18,977.85 = 8,443.89/x
  3. Step 3: Cross multiply
    13,748.58x = 18,977.85 × 8,443.89
  4. Step 4: Simplify right side
    13,748.58x = 160,246,877.84
  5. Step 5: Solve for x
    x = 160,246,877.84/13,748.58
  6. Step 6: Final answer
    x = 11,655.52

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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.