Home / 11,681.35-16,119.65-6,376.07

Finding the Fourth Proportional to 11,681.35, 16,119.65 and 6,376.07

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Solution

The fourth proportional to 11,681.35, 16,119.65 and 6,376.07 is: 8,798.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,681.35 : 16,119.65 = 6,376.07 : x
  2. Step 2: Convert to fraction form
    11,681.35/16,119.65 = 6,376.07/x
  3. Step 3: Cross multiply
    11,681.35x = 16,119.65 × 6,376.07
  4. Step 4: Simplify right side
    11,681.35x = 102,779,984.90
  5. Step 5: Solve for x
    x = 102,779,984.90/11,681.35
  6. Step 6: Final answer
    x = 8,798.64

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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.