Home / 19,683.23-27,161.49-11,070.70

Finding the Fourth Proportional to 19,683.23, 27,161.49 and 11,070.70

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Solution

The fourth proportional to 19,683.23, 27,161.49 and 11,070.70 is: 15,276.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,683.23 : 27,161.49 = 11,070.70 : x
  2. Step 2: Convert to fraction form
    19,683.23/27,161.49 = 11,070.70/x
  3. Step 3: Cross multiply
    19,683.23x = 27,161.49 × 11,070.70
  4. Step 4: Simplify right side
    19,683.23x = 300,696,707.34
  5. Step 5: Solve for x
    x = 300,696,707.34/19,683.23
  6. Step 6: Final answer
    x = 15,276.80

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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.