Home / 13,883.81-19,159.34-7,916.33

Finding the Fourth Proportional to 13,883.81, 19,159.34 and 7,916.33

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Solution

The fourth proportional to 13,883.81, 19,159.34 and 7,916.33 is: 10,924.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,883.81 : 19,159.34 = 7,916.33 : x
  2. Step 2: Convert to fraction form
    13,883.81/19,159.34 = 7,916.33/x
  3. Step 3: Cross multiply
    13,883.81x = 19,159.34 × 7,916.33
  4. Step 4: Simplify right side
    13,883.81x = 151,671,666.34
  5. Step 5: Solve for x
    x = 151,671,666.34/13,883.81
  6. Step 6: Final answer
    x = 10,924.36

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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.