Home / 12,860.87-19,286.40-4,539.34

Finding the Fourth Proportional to 12,860.87, 19,286.40 and 4,539.34

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Solution

The fourth proportional to 12,860.87, 19,286.40 and 4,539.34 is: 6,807.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,860.87 : 19,286.40 = 4,539.34 : x
  2. Step 2: Convert to fraction form
    12,860.87/19,286.40 = 4,539.34/x
  3. Step 3: Cross multiply
    12,860.87x = 19,286.40 × 4,539.34
  4. Step 4: Simplify right side
    12,860.87x = 87,547,430.54
  5. Step 5: Solve for x
    x = 87,547,430.54/12,860.87
  6. Step 6: Final answer
    x = 6,807.27

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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.