Home / 18,823.98-25,981.76-10,865.04

Finding the Fourth Proportional to 18,823.98, 25,981.76 and 10,865.04

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Solution

The fourth proportional to 18,823.98, 25,981.76 and 10,865.04 is: 14,996.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,823.98 : 25,981.76 = 10,865.04 : x
  2. Step 2: Convert to fraction form
    18,823.98/25,981.76 = 10,865.04/x
  3. Step 3: Cross multiply
    18,823.98x = 25,981.76 × 10,865.04
  4. Step 4: Simplify right side
    18,823.98x = 282,292,861.67
  5. Step 5: Solve for x
    x = 282,292,861.67/18,823.98
  6. Step 6: Final answer
    x = 14,996.45

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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.