Home / 13,111.08-19,672.97-6,538.20

Finding the Fourth Proportional to 13,111.08, 19,672.97 and 6,538.20

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Solution

The fourth proportional to 13,111.08, 19,672.97 and 6,538.20 is: 9,810.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,111.08 : 19,672.97 = 6,538.20 : x
  2. Step 2: Convert to fraction form
    13,111.08/19,672.97 = 6,538.20/x
  3. Step 3: Cross multiply
    13,111.08x = 19,672.97 × 6,538.20
  4. Step 4: Simplify right side
    13,111.08x = 128,625,779.76
  5. Step 5: Solve for x
    x = 128,625,779.76/13,111.08
  6. Step 6: Final answer
    x = 9,810.46

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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.