Home / 21,512.52-29,686.26-11,953.02

Finding the Fourth Proportional to 21,512.52, 29,686.26 and 11,953.02

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Solution

The fourth proportional to 21,512.52, 29,686.26 and 11,953.02 is: 16,494.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,512.52 : 29,686.26 = 11,953.02 : x
  2. Step 2: Convert to fraction form
    21,512.52/29,686.26 = 11,953.02/x
  3. Step 3: Cross multiply
    21,512.52x = 29,686.26 × 11,953.02
  4. Step 4: Simplify right side
    21,512.52x = 354,840,459.51
  5. Step 5: Solve for x
    x = 354,840,459.51/21,512.52
  6. Step 6: Final answer
    x = 16,494.60

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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.