Home / 12,958.46-19,437.99-4,639.05

Finding the Fourth Proportional to 12,958.46, 19,437.99 and 4,639.05

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Solution

The fourth proportional to 12,958.46, 19,437.99 and 4,639.05 is: 6,958.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,958.46 : 19,437.99 = 4,639.05 : x
  2. Step 2: Convert to fraction form
    12,958.46/19,437.99 = 4,639.05/x
  3. Step 3: Cross multiply
    12,958.46x = 19,437.99 × 4,639.05
  4. Step 4: Simplify right side
    12,958.46x = 90,173,807.51
  5. Step 5: Solve for x
    x = 90,173,807.51/12,958.46
  6. Step 6: Final answer
    x = 6,958.68

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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.