Home / 13,187.08-19,779.54-4,866.76

Finding the Fourth Proportional to 13,187.08, 19,779.54 and 4,866.76

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Solution

The fourth proportional to 13,187.08, 19,779.54 and 4,866.76 is: 7,299.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,187.08 : 19,779.54 = 4,866.76 : x
  2. Step 2: Convert to fraction form
    13,187.08/19,779.54 = 4,866.76/x
  3. Step 3: Cross multiply
    13,187.08x = 19,779.54 × 4,866.76
  4. Step 4: Simplify right side
    13,187.08x = 96,262,274.09
  5. Step 5: Solve for x
    x = 96,262,274.09/13,187.08
  6. Step 6: Final answer
    x = 7,299.74

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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.