Home / 19,091.60-28,637.88-7,407.44

Finding the Fourth Proportional to 19,091.60, 28,637.88 and 7,407.44

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Solution

The fourth proportional to 19,091.60, 28,637.88 and 7,407.44 is: 11,111.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,091.60 : 28,637.88 = 7,407.44 : x
  2. Step 2: Convert to fraction form
    19,091.60/28,637.88 = 7,407.44/x
  3. Step 3: Cross multiply
    19,091.60x = 28,637.88 × 7,407.44
  4. Step 4: Simplify right side
    19,091.60x = 212,133,377.83
  5. Step 5: Solve for x
    x = 212,133,377.83/19,091.60
  6. Step 6: Final answer
    x = 11,111.35

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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.