Home / 13,862.34-19,130.58-7,894.26

Finding the Fourth Proportional to 13,862.34, 19,130.58 and 7,894.26

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Solution

The fourth proportional to 13,862.34, 19,130.58 and 7,894.26 is: 10,894.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,862.34 : 19,130.58 = 7,894.26 : x
  2. Step 2: Convert to fraction form
    13,862.34/19,130.58 = 7,894.26/x
  3. Step 3: Cross multiply
    13,862.34x = 19,130.58 × 7,894.26
  4. Step 4: Simplify right side
    13,862.34x = 151,021,772.47
  5. Step 5: Solve for x
    x = 151,021,772.47/13,862.34
  6. Step 6: Final answer
    x = 10,894.39

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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.