Home / 15,864.36-21,897.86-9,241.64

Finding the Fourth Proportional to 15,864.36, 21,897.86 and 9,241.64

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Solution

The fourth proportional to 15,864.36, 21,897.86 and 9,241.64 is: 12,756.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,864.36 : 21,897.86 = 9,241.64 : x
  2. Step 2: Convert to fraction form
    15,864.36/21,897.86 = 9,241.64/x
  3. Step 3: Cross multiply
    15,864.36x = 21,897.86 × 9,241.64
  4. Step 4: Simplify right side
    15,864.36x = 202,372,138.89
  5. Step 5: Solve for x
    x = 202,372,138.89/15,864.36
  6. Step 6: Final answer
    x = 12,756.40

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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.