Home / 9,088.20-13,643.64-6,638.76

Finding the Fourth Proportional to 9,088.20, 13,643.64 and 6,638.76

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Solution

The fourth proportional to 9,088.20, 13,643.64 and 6,638.76 is: 9,966.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,088.20 : 13,643.64 = 6,638.76 : x
  2. Step 2: Convert to fraction form
    9,088.20/13,643.64 = 6,638.76/x
  3. Step 3: Cross multiply
    9,088.20x = 13,643.64 × 6,638.76
  4. Step 4: Simplify right side
    9,088.20x = 90,576,851.49
  5. Step 5: Solve for x
    x = 90,576,851.49/9,088.20
  6. Step 6: Final answer
    x = 9,966.42

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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.