Home / 11,345.10-15,660.32-6,567.20

Finding the Fourth Proportional to 11,345.10, 15,660.32 and 6,567.20

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Solution

The fourth proportional to 11,345.10, 15,660.32 and 6,567.20 is: 9,065.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,345.10 : 15,660.32 = 6,567.20 : x
  2. Step 2: Convert to fraction form
    11,345.10/15,660.32 = 6,567.20/x
  3. Step 3: Cross multiply
    11,345.10x = 15,660.32 × 6,567.20
  4. Step 4: Simplify right side
    11,345.10x = 102,844,453.50
  5. Step 5: Solve for x
    x = 102,844,453.50/11,345.10
  6. Step 6: Final answer
    x = 9,065.10

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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.