Home / 11,368.69-15,688.89-6,653.07

Finding the Fourth Proportional to 11,368.69, 15,688.89 and 6,653.07

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Solution

The fourth proportional to 11,368.69, 15,688.89 and 6,653.07 is: 9,181.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,368.69 : 15,688.89 = 6,653.07 : x
  2. Step 2: Convert to fraction form
    11,368.69/15,688.89 = 6,653.07/x
  3. Step 3: Cross multiply
    11,368.69x = 15,688.89 × 6,653.07
  4. Step 4: Simplify right side
    11,368.69x = 104,379,283.39
  5. Step 5: Solve for x
    x = 104,379,283.39/11,368.69
  6. Step 6: Final answer
    x = 9,181.30

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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.