Home / 16,775.12-23,142.60-11,111.12

Finding the Fourth Proportional to 16,775.12, 23,142.60 and 11,111.12

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Solution

The fourth proportional to 16,775.12, 23,142.60 and 11,111.12 is: 15,328.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,775.12 : 23,142.60 = 11,111.12 : x
  2. Step 2: Convert to fraction form
    16,775.12/23,142.60 = 11,111.12/x
  3. Step 3: Cross multiply
    16,775.12x = 23,142.60 × 11,111.12
  4. Step 4: Simplify right side
    16,775.12x = 257,140,205.71
  5. Step 5: Solve for x
    x = 257,140,205.71/16,775.12
  6. Step 6: Final answer
    x = 15,328.67

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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.