Home / 19,280.08-26,601.68-12,111.12

Finding the Fourth Proportional to 19,280.08, 26,601.68 and 12,111.12

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Solution

The fourth proportional to 19,280.08, 26,601.68 and 12,111.12 is: 16,710.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,280.08 : 26,601.68 = 12,111.12 : x
  2. Step 2: Convert to fraction form
    19,280.08/26,601.68 = 12,111.12/x
  3. Step 3: Cross multiply
    19,280.08x = 26,601.68 × 12,111.12
  4. Step 4: Simplify right side
    19,280.08x = 322,176,138.68
  5. Step 5: Solve for x
    x = 322,176,138.68/19,280.08
  6. Step 6: Final answer
    x = 16,710.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.