Home / 13,317.13-19,956.65-9,779.38

Finding the Fourth Proportional to 13,317.13, 19,956.65 and 9,779.38

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Solution

The fourth proportional to 13,317.13, 19,956.65 and 9,779.38 is: 14,655.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,317.13 : 19,956.65 = 9,779.38 : x
  2. Step 2: Convert to fraction form
    13,317.13/19,956.65 = 9,779.38/x
  3. Step 3: Cross multiply
    13,317.13x = 19,956.65 × 9,779.38
  4. Step 4: Simplify right side
    13,317.13x = 195,163,638.43
  5. Step 5: Solve for x
    x = 195,163,638.43/13,317.13
  6. Step 6: Final answer
    x = 14,655.09

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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.