Home / 18,713.48-28,070.36-12,852.32

Finding the Fourth Proportional to 18,713.48, 28,070.36 and 12,852.32

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Solution

The fourth proportional to 18,713.48, 28,070.36 and 12,852.32 is: 19,278.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,713.48 : 28,070.36 = 12,852.32 : x
  2. Step 2: Convert to fraction form
    18,713.48/28,070.36 = 12,852.32/x
  3. Step 3: Cross multiply
    18,713.48x = 28,070.36 × 12,852.32
  4. Step 4: Simplify right side
    18,713.48x = 360,769,249.24
  5. Step 5: Solve for x
    x = 360,769,249.24/18,713.48
  6. Step 6: Final answer
    x = 19,278.58

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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.