Home / 13,809.99-19,058.31-7,841.91

Finding the Fourth Proportional to 13,809.99, 19,058.31 and 7,841.91

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Solution

The fourth proportional to 13,809.99, 19,058.31 and 7,841.91 is: 10,822.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,809.99 : 19,058.31 = 7,841.91 : x
  2. Step 2: Convert to fraction form
    13,809.99/19,058.31 = 7,841.91/x
  3. Step 3: Cross multiply
    13,809.99x = 19,058.31 × 7,841.91
  4. Step 4: Simplify right side
    13,809.99x = 149,453,551.77
  5. Step 5: Solve for x
    x = 149,453,551.77/13,809.99
  6. Step 6: Final answer
    x = 10,822.13

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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.