Home / 11,435.69-15,779.81-6,657.17

Finding the Fourth Proportional to 11,435.69, 15,779.81 and 6,657.17

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Solution

The fourth proportional to 11,435.69, 15,779.81 and 6,657.17 is: 9,186.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,435.69 : 15,779.81 = 6,657.17 : x
  2. Step 2: Convert to fraction form
    11,435.69/15,779.81 = 6,657.17/x
  3. Step 3: Cross multiply
    11,435.69x = 15,779.81 × 6,657.17
  4. Step 4: Simplify right side
    11,435.69x = 105,048,765.55
  5. Step 5: Solve for x
    x = 105,048,765.55/11,435.69
  6. Step 6: Final answer
    x = 9,186.05

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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.