Home / 11,681.56-16,123.62-7,209.16

Finding the Fourth Proportional to 11,681.56, 16,123.62 and 7,209.16

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Solution

The fourth proportional to 11,681.56, 16,123.62 and 7,209.16 is: 9,950.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,681.56 : 16,123.62 = 7,209.16 : x
  2. Step 2: Convert to fraction form
    11,681.56/16,123.62 = 7,209.16/x
  3. Step 3: Cross multiply
    11,681.56x = 16,123.62 × 7,209.16
  4. Step 4: Simplify right side
    11,681.56x = 116,237,756.36
  5. Step 5: Solve for x
    x = 116,237,756.36/11,681.56
  6. Step 6: Final answer
    x = 9,950.53

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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.