Home / 19,270.71-28,888.54-7,416.92

Finding the Fourth Proportional to 19,270.71, 28,888.54 and 7,416.92

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Solution

The fourth proportional to 19,270.71, 28,888.54 and 7,416.92 is: 11,118.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,270.71 : 28,888.54 = 7,416.92 : x
  2. Step 2: Convert to fraction form
    19,270.71/28,888.54 = 7,416.92/x
  3. Step 3: Cross multiply
    19,270.71x = 28,888.54 × 7,416.92
  4. Step 4: Simplify right side
    19,270.71x = 214,264,043.78
  5. Step 5: Solve for x
    x = 214,264,043.78/19,270.71
  6. Step 6: Final answer
    x = 11,118.64

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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.