Home / 13,485.31-20,192.52-10,838.77

Finding the Fourth Proportional to 13,485.31, 20,192.52 and 10,838.77

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Solution

The fourth proportional to 13,485.31, 20,192.52 and 10,838.77 is: 16,229.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,485.31 : 20,192.52 = 10,838.77 : x
  2. Step 2: Convert to fraction form
    13,485.31/20,192.52 = 10,838.77/x
  3. Step 3: Cross multiply
    13,485.31x = 20,192.52 × 10,838.77
  4. Step 4: Simplify right side
    13,485.31x = 218,862,070.16
  5. Step 5: Solve for x
    x = 218,862,070.16/13,485.31
  6. Step 6: Final answer
    x = 16,229.67

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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.