Home / 11,985.75-16,541.57-7,207.26

Finding the Fourth Proportional to 11,985.75, 16,541.57 and 7,207.26

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Solution

The fourth proportional to 11,985.75, 16,541.57 and 7,207.26 is: 9,946.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,985.75 : 16,541.57 = 7,207.26 : x
  2. Step 2: Convert to fraction form
    11,985.75/16,541.57 = 7,207.26/x
  3. Step 3: Cross multiply
    11,985.75x = 16,541.57 × 7,207.26
  4. Step 4: Simplify right side
    11,985.75x = 119,219,359.76
  5. Step 5: Solve for x
    x = 119,219,359.76/11,985.75
  6. Step 6: Final answer
    x = 9,946.76

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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.