Home / 13,630.07-20,435.53-5,303.07

Finding the Fourth Proportional to 13,630.07, 20,435.53 and 5,303.07

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Solution

The fourth proportional to 13,630.07, 20,435.53 and 5,303.07 is: 7,950.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,630.07 : 20,435.53 = 5,303.07 : x
  2. Step 2: Convert to fraction form
    13,630.07/20,435.53 = 5,303.07/x
  3. Step 3: Cross multiply
    13,630.07x = 20,435.53 × 5,303.07
  4. Step 4: Simplify right side
    13,630.07x = 108,370,943.90
  5. Step 5: Solve for x
    x = 108,370,943.90/13,630.07
  6. Step 6: Final answer
    x = 7,950.88

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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.