Home / 11,681.49-17,521.29-4,285.65

Finding the Fourth Proportional to 11,681.49, 17,521.29 and 4,285.65

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Solution

The fourth proportional to 11,681.49, 17,521.29 and 4,285.65 is: 6,428.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,681.49 : 17,521.29 = 4,285.65 : x
  2. Step 2: Convert to fraction form
    11,681.49/17,521.29 = 4,285.65/x
  3. Step 3: Cross multiply
    11,681.49x = 17,521.29 × 4,285.65
  4. Step 4: Simplify right side
    11,681.49x = 75,090,116.49
  5. Step 5: Solve for x
    x = 75,090,116.49/11,681.49
  6. Step 6: Final answer
    x = 6,428.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.