Home / 13,762.32-20,628.36-9,012.72

Finding the Fourth Proportional to 13,762.32, 20,628.36 and 9,012.72

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Solution

The fourth proportional to 13,762.32, 20,628.36 and 9,012.72 is: 13,509.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,762.32 : 20,628.36 = 9,012.72 : x
  2. Step 2: Convert to fraction form
    13,762.32/20,628.36 = 9,012.72/x
  3. Step 3: Cross multiply
    13,762.32x = 20,628.36 × 9,012.72
  4. Step 4: Simplify right side
    13,762.32x = 185,917,632.74
  5. Step 5: Solve for x
    x = 185,917,632.74/13,762.32
  6. Step 6: Final answer
    x = 13,509.18

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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.