Home / 11,435.19-15,779.12-6,656.67

Finding the Fourth Proportional to 11,435.19, 15,779.12 and 6,656.67

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Solution

The fourth proportional to 11,435.19, 15,779.12 and 6,656.67 is: 9,185.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,435.19 : 15,779.12 = 6,656.67 : x
  2. Step 2: Convert to fraction form
    11,435.19/15,779.12 = 6,656.67/x
  3. Step 3: Cross multiply
    11,435.19x = 15,779.12 × 6,656.67
  4. Step 4: Simplify right side
    11,435.19x = 105,036,394.73
  5. Step 5: Solve for x
    x = 105,036,394.73/11,435.19
  6. Step 6: Final answer
    x = 9,185.37

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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.