Home / 13,303.51-19,920.04-8,031.47

Finding the Fourth Proportional to 13,303.51, 19,920.04 and 8,031.47

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Solution

The fourth proportional to 13,303.51, 19,920.04 and 8,031.47 is: 12,025.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,303.51 : 19,920.04 = 8,031.47 : x
  2. Step 2: Convert to fraction form
    13,303.51/19,920.04 = 8,031.47/x
  3. Step 3: Cross multiply
    13,303.51x = 19,920.04 × 8,031.47
  4. Step 4: Simplify right side
    13,303.51x = 159,987,083.98
  5. Step 5: Solve for x
    x = 159,987,083.98/13,303.51
  6. Step 6: Final answer
    x = 12,025.93

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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.