Home / 15,726.03-21,678.44-10,411.62

Finding the Fourth Proportional to 15,726.03, 21,678.44 and 10,411.62

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Solution

The fourth proportional to 15,726.03, 21,678.44 and 10,411.62 is: 14,352.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,726.03 : 21,678.44 = 10,411.62 : x
  2. Step 2: Convert to fraction form
    15,726.03/21,678.44 = 10,411.62/x
  3. Step 3: Cross multiply
    15,726.03x = 21,678.44 × 10,411.62
  4. Step 4: Simplify right side
    15,726.03x = 225,707,599.25
  5. Step 5: Solve for x
    x = 225,707,599.25/15,726.03
  6. Step 6: Final answer
    x = 14,352.49

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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.