Home / 13,918.32-19,203.51-7,948.80

Finding the Fourth Proportional to 13,918.32, 19,203.51 and 7,948.80

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Solution

The fourth proportional to 13,918.32, 19,203.51 and 7,948.80 is: 10,967.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,918.32 : 19,203.51 = 7,948.80 : x
  2. Step 2: Convert to fraction form
    13,918.32/19,203.51 = 7,948.80/x
  3. Step 3: Cross multiply
    13,918.32x = 19,203.51 × 7,948.80
  4. Step 4: Simplify right side
    13,918.32x = 152,644,860.29
  5. Step 5: Solve for x
    x = 152,644,860.29/13,918.32
  6. Step 6: Final answer
    x = 10,967.19

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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.