Home / 19,078.53-28,501.73-12,360.34

Finding the Fourth Proportional to 19,078.53, 28,501.73 and 12,360.34

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Solution

The fourth proportional to 19,078.53, 28,501.73 and 12,360.34 is: 18,465.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,078.53 : 28,501.73 = 12,360.34 : x
  2. Step 2: Convert to fraction form
    19,078.53/28,501.73 = 12,360.34/x
  3. Step 3: Cross multiply
    19,078.53x = 28,501.73 × 12,360.34
  4. Step 4: Simplify right side
    19,078.53x = 352,291,073.39
  5. Step 5: Solve for x
    x = 352,291,073.39/19,078.53
  6. Step 6: Final answer
    x = 18,465.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.