Home / 13,698.90-20,551.43-4,339.48

Finding the Fourth Proportional to 13,698.90, 20,551.43 and 4,339.48

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Solution

The fourth proportional to 13,698.90, 20,551.43 and 4,339.48 is: 6,510.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,698.90 : 20,551.43 = 4,339.48 : x
  2. Step 2: Convert to fraction form
    13,698.90/20,551.43 = 4,339.48/x
  3. Step 3: Cross multiply
    13,698.90x = 20,551.43 × 4,339.48
  4. Step 4: Simplify right side
    13,698.90x = 89,182,519.46
  5. Step 5: Solve for x
    x = 89,182,519.46/13,698.90
  6. Step 6: Final answer
    x = 6,510.20

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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.