Home / 8,681.23-11,980.04-4,905.62

Finding the Fourth Proportional to 8,681.23, 11,980.04 and 4,905.62

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Solution

The fourth proportional to 8,681.23, 11,980.04 and 4,905.62 is: 6,769.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,681.23 : 11,980.04 = 4,905.62 : x
  2. Step 2: Convert to fraction form
    8,681.23/11,980.04 = 4,905.62/x
  3. Step 3: Cross multiply
    8,681.23x = 11,980.04 × 4,905.62
  4. Step 4: Simplify right side
    8,681.23x = 58,769,502.72
  5. Step 5: Solve for x
    x = 58,769,502.72/8,681.23
  6. Step 6: Final answer
    x = 6,769.72

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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.