Home / 19,217.19-28,830.47-7,370.75

Finding the Fourth Proportional to 19,217.19, 28,830.47 and 7,370.75

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Solution

The fourth proportional to 19,217.19, 28,830.47 and 7,370.75 is: 11,057.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,217.19 : 28,830.47 = 7,370.75 : x
  2. Step 2: Convert to fraction form
    19,217.19/28,830.47 = 7,370.75/x
  3. Step 3: Cross multiply
    19,217.19x = 28,830.47 × 7,370.75
  4. Step 4: Simplify right side
    19,217.19x = 212,502,045.29
  5. Step 5: Solve for x
    x = 212,502,045.29/19,217.19
  6. Step 6: Final answer
    x = 11,057.91

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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.