Home / 18,885.67-28,309.06-10,118.23

Finding the Fourth Proportional to 18,885.67, 28,309.06 and 10,118.23

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Solution

The fourth proportional to 18,885.67, 28,309.06 and 10,118.23 is: 15,166.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,885.67 : 28,309.06 = 10,118.23 : x
  2. Step 2: Convert to fraction form
    18,885.67/28,309.06 = 10,118.23/x
  3. Step 3: Cross multiply
    18,885.67x = 28,309.06 × 10,118.23
  4. Step 4: Simplify right side
    18,885.67x = 286,437,580.16
  5. Step 5: Solve for x
    x = 286,437,580.16/18,885.67
  6. Step 6: Final answer
    x = 15,166.93

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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.