Home / 12,688.07-19,032.71-3,328.32

Finding the Fourth Proportional to 12,688.07, 19,032.71 and 3,328.32

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Solution

The fourth proportional to 12,688.07, 19,032.71 and 3,328.32 is: 4,992.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,688.07 : 19,032.71 = 3,328.32 : x
  2. Step 2: Convert to fraction form
    12,688.07/19,032.71 = 3,328.32/x
  3. Step 3: Cross multiply
    12,688.07x = 19,032.71 × 3,328.32
  4. Step 4: Simplify right side
    12,688.07x = 63,346,932.71
  5. Step 5: Solve for x
    x = 63,346,932.71/12,688.07
  6. Step 6: Final answer
    x = 4,992.64

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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.