Home / 11,584.99-15,981.40-7,328.88

Finding the Fourth Proportional to 11,584.99, 15,981.40 and 7,328.88

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Solution

The fourth proportional to 11,584.99, 15,981.40 and 7,328.88 is: 10,110.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,584.99 : 15,981.40 = 7,328.88 : x
  2. Step 2: Convert to fraction form
    11,584.99/15,981.40 = 7,328.88/x
  3. Step 3: Cross multiply
    11,584.99x = 15,981.40 × 7,328.88
  4. Step 4: Simplify right side
    11,584.99x = 117,125,771.99
  5. Step 5: Solve for x
    x = 117,125,771.99/11,584.99
  6. Step 6: Final answer
    x = 10,110.13

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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.