Home / 19,091.84-26,331.12-13,445.32

Finding the Fourth Proportional to 19,091.84, 26,331.12 and 13,445.32

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Solution

The fourth proportional to 19,091.84, 26,331.12 and 13,445.32 is: 18,543.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,091.84 : 26,331.12 = 13,445.32 : x
  2. Step 2: Convert to fraction form
    19,091.84/26,331.12 = 13,445.32/x
  3. Step 3: Cross multiply
    19,091.84x = 26,331.12 × 13,445.32
  4. Step 4: Simplify right side
    19,091.84x = 354,030,334.36
  5. Step 5: Solve for x
    x = 354,030,334.36/19,091.84
  6. Step 6: Final answer
    x = 18,543.54

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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.