Home / 14,628.32-20,146.56-12,638.24

Finding the Fourth Proportional to 14,628.32, 20,146.56 and 12,638.24

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Solution

The fourth proportional to 14,628.32, 20,146.56 and 12,638.24 is: 17,405.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,628.32 : 20,146.56 = 12,638.24 : x
  2. Step 2: Convert to fraction form
    14,628.32/20,146.56 = 12,638.24/x
  3. Step 3: Cross multiply
    14,628.32x = 20,146.56 × 12,638.24
  4. Step 4: Simplify right side
    14,628.32x = 254,617,060.45
  5. Step 5: Solve for x
    x = 254,617,060.45/14,628.32
  6. Step 6: Final answer
    x = 17,405.76

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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.