Home / 15,981.69-23,985.09-11,085.78

Finding the Fourth Proportional to 15,981.69, 23,985.09 and 11,085.78

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Solution

The fourth proportional to 15,981.69, 23,985.09 and 11,085.78 is: 16,637.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,981.69 : 23,985.09 = 11,085.78 : x
  2. Step 2: Convert to fraction form
    15,981.69/23,985.09 = 11,085.78/x
  3. Step 3: Cross multiply
    15,981.69x = 23,985.09 × 11,085.78
  4. Step 4: Simplify right side
    15,981.69x = 265,893,431.02
  5. Step 5: Solve for x
    x = 265,893,431.02/15,981.69
  6. Step 6: Final answer
    x = 16,637.38

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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.