Home / 13,315.52-19,973.28-4,080.32

Finding the Fourth Proportional to 13,315.52, 19,973.28 and 4,080.32

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Solution

The fourth proportional to 13,315.52, 19,973.28 and 4,080.32 is: 6,120.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,315.52 : 19,973.28 = 4,080.32 : x
  2. Step 2: Convert to fraction form
    13,315.52/19,973.28 = 4,080.32/x
  3. Step 3: Cross multiply
    13,315.52x = 19,973.28 × 4,080.32
  4. Step 4: Simplify right side
    13,315.52x = 81,497,373.85
  5. Step 5: Solve for x
    x = 81,497,373.85/13,315.52
  6. Step 6: Final answer
    x = 6,120.48

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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.