Home / 13,316.32-19,967.32-6,638.28

Finding the Fourth Proportional to 13,316.32, 19,967.32 and 6,638.28

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Solution

The fourth proportional to 13,316.32, 19,967.32 and 6,638.28 is: 9,953.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,316.32 : 19,967.32 = 6,638.28 : x
  2. Step 2: Convert to fraction form
    13,316.32/19,967.32 = 6,638.28/x
  3. Step 3: Cross multiply
    13,316.32x = 19,967.32 × 6,638.28
  4. Step 4: Simplify right side
    13,316.32x = 132,548,661.01
  5. Step 5: Solve for x
    x = 132,548,661.01/13,316.32
  6. Step 6: Final answer
    x = 9,953.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.