Home / 12,961.80-17,899.56-10,328.58

Finding the Fourth Proportional to 12,961.80, 17,899.56 and 10,328.58

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Solution

The fourth proportional to 12,961.80, 17,899.56 and 10,328.58 is: 14,263.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,961.80 : 17,899.56 = 10,328.58 : x
  2. Step 2: Convert to fraction form
    12,961.80/17,899.56 = 10,328.58/x
  3. Step 3: Cross multiply
    12,961.80x = 17,899.56 × 10,328.58
  4. Step 4: Simplify right side
    12,961.80x = 184,877,037.42
  5. Step 5: Solve for x
    x = 184,877,037.42/12,961.80
  6. Step 6: Final answer
    x = 14,263.22

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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.