Home / 15,661.30-23,498.10-6,890.06

Finding the Fourth Proportional to 15,661.30, 23,498.10 and 6,890.06

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Solution

The fourth proportional to 15,661.30, 23,498.10 and 6,890.06 is: 10,337.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,661.30 : 23,498.10 = 6,890.06 : x
  2. Step 2: Convert to fraction form
    15,661.30/23,498.10 = 6,890.06/x
  3. Step 3: Cross multiply
    15,661.30x = 23,498.10 × 6,890.06
  4. Step 4: Simplify right side
    15,661.30x = 161,903,377.63
  5. Step 5: Solve for x
    x = 161,903,377.63/15,661.30
  6. Step 6: Final answer
    x = 10,337.80

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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.