Home / 11,072.72-15,270.95-9,356.42

Finding the Fourth Proportional to 11,072.72, 15,270.95 and 9,356.42

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Solution

The fourth proportional to 11,072.72, 15,270.95 and 9,356.42 is: 12,903.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,072.72 : 15,270.95 = 9,356.42 : x
  2. Step 2: Convert to fraction form
    11,072.72/15,270.95 = 9,356.42/x
  3. Step 3: Cross multiply
    11,072.72x = 15,270.95 × 9,356.42
  4. Step 4: Simplify right side
    11,072.72x = 142,881,501.11
  5. Step 5: Solve for x
    x = 142,881,501.11/11,072.72
  6. Step 6: Final answer
    x = 12,903.92

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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.