Home / 13,509.16-20,270.87-9,585.77

Finding the Fourth Proportional to 13,509.16, 20,270.87 and 9,585.77

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Solution

The fourth proportional to 13,509.16, 20,270.87 and 9,585.77 is: 14,383.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,509.16 : 20,270.87 = 9,585.77 : x
  2. Step 2: Convert to fraction form
    13,509.16/20,270.87 = 9,585.77/x
  3. Step 3: Cross multiply
    13,509.16x = 20,270.87 × 9,585.77
  4. Step 4: Simplify right side
    13,509.16x = 194,311,870.81
  5. Step 5: Solve for x
    x = 194,311,870.81/13,509.16
  6. Step 6: Final answer
    x = 14,383.71

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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.