Home / 14,712.32-20,303.36-8,426.72

Finding the Fourth Proportional to 14,712.32, 20,303.36 and 8,426.72

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Solution

The fourth proportional to 14,712.32, 20,303.36 and 8,426.72 is: 11,629.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,712.32 : 20,303.36 = 8,426.72 : x
  2. Step 2: Convert to fraction form
    14,712.32/20,303.36 = 8,426.72/x
  3. Step 3: Cross multiply
    14,712.32x = 20,303.36 × 8,426.72
  4. Step 4: Simplify right side
    14,712.32x = 171,090,729.78
  5. Step 5: Solve for x
    x = 171,090,729.78/14,712.32
  6. Step 6: Final answer
    x = 11,629.08

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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.