Home / 13,875.52-20,790.08-9,960.32

Finding the Fourth Proportional to 13,875.52, 20,790.08 and 9,960.32

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Solution

The fourth proportional to 13,875.52, 20,790.08 and 9,960.32 is: 14,923.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,875.52 : 20,790.08 = 9,960.32 : x
  2. Step 2: Convert to fraction form
    13,875.52/20,790.08 = 9,960.32/x
  3. Step 3: Cross multiply
    13,875.52x = 20,790.08 × 9,960.32
  4. Step 4: Simplify right side
    13,875.52x = 207,075,849.63
  5. Step 5: Solve for x
    x = 207,075,849.63/13,875.52
  6. Step 6: Final answer
    x = 14,923.83

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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.