Home / 11,681.51-16,120.56-6,376.01

Finding the Fourth Proportional to 11,681.51, 16,120.56 and 6,376.01

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Solution

The fourth proportional to 11,681.51, 16,120.56 and 6,376.01 is: 8,798.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,681.51 : 16,120.56 = 6,376.01 : x
  2. Step 2: Convert to fraction form
    11,681.51/16,120.56 = 6,376.01/x
  3. Step 3: Cross multiply
    11,681.51x = 16,120.56 × 6,376.01
  4. Step 4: Simplify right side
    11,681.51x = 102,784,771.16
  5. Step 5: Solve for x
    x = 102,784,771.16/11,681.51
  6. Step 6: Final answer
    x = 8,798.93

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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.