Home / 11,009.79-15,172.56-10,807.38

Finding the Fourth Proportional to 11,009.79, 15,172.56 and 10,807.38

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Solution

The fourth proportional to 11,009.79, 15,172.56 and 10,807.38 is: 14,893.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,009.79 : 15,172.56 = 10,807.38 : x
  2. Step 2: Convert to fraction form
    11,009.79/15,172.56 = 10,807.38/x
  3. Step 3: Cross multiply
    11,009.79x = 15,172.56 × 10,807.38
  4. Step 4: Simplify right side
    11,009.79x = 163,975,621.49
  5. Step 5: Solve for x
    x = 163,975,621.49/11,009.79
  6. Step 6: Final answer
    x = 14,893.62

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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.