Home / 18,948.83-28,430.61-7,852.69

Finding the Fourth Proportional to 18,948.83, 28,430.61 and 7,852.69

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Solution

The fourth proportional to 18,948.83, 28,430.61 and 7,852.69 is: 11,782.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,948.83 : 28,430.61 = 7,852.69 : x
  2. Step 2: Convert to fraction form
    18,948.83/28,430.61 = 7,852.69/x
  3. Step 3: Cross multiply
    18,948.83x = 28,430.61 × 7,852.69
  4. Step 4: Simplify right side
    18,948.83x = 223,256,695.76
  5. Step 5: Solve for x
    x = 223,256,695.76/18,948.83
  6. Step 6: Final answer
    x = 11,782.09

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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.