Home / 13,017.48-19,531.68-6,779.07

Finding the Fourth Proportional to 13,017.48, 19,531.68 and 6,779.07

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Solution

The fourth proportional to 13,017.48, 19,531.68 and 6,779.07 is: 10,171.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,017.48 : 19,531.68 = 6,779.07 : x
  2. Step 2: Convert to fraction form
    13,017.48/19,531.68 = 6,779.07/x
  3. Step 3: Cross multiply
    13,017.48x = 19,531.68 × 6,779.07
  4. Step 4: Simplify right side
    13,017.48x = 132,406,625.94
  5. Step 5: Solve for x
    x = 132,406,625.94/13,017.48
  6. Step 6: Final answer
    x = 10,171.45

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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.