Home / 15,283.30-21,064.14-13,153.54

Finding the Fourth Proportional to 15,283.30, 21,064.14 and 13,153.54

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Solution

The fourth proportional to 15,283.30, 21,064.14 and 13,153.54 is: 18,128.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,283.30 : 21,064.14 = 13,153.54 : x
  2. Step 2: Convert to fraction form
    15,283.30/21,064.14 = 13,153.54/x
  3. Step 3: Cross multiply
    15,283.30x = 21,064.14 × 13,153.54
  4. Step 4: Simplify right side
    15,283.30x = 277,068,008.06
  5. Step 5: Solve for x
    x = 277,068,008.06/15,283.30
  6. Step 6: Final answer
    x = 18,128.81

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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.