Home / 11,055.20-16,582.80-7,345.40

Finding the Fourth Proportional to 11,055.20, 16,582.80 and 7,345.40

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Solution

The fourth proportional to 11,055.20, 16,582.80 and 7,345.40 is: 11,018.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,055.20 : 16,582.80 = 7,345.40 : x
  2. Step 2: Convert to fraction form
    11,055.20/16,582.80 = 7,345.40/x
  3. Step 3: Cross multiply
    11,055.20x = 16,582.80 × 7,345.40
  4. Step 4: Simplify right side
    11,055.20x = 121,807,299.12
  5. Step 5: Solve for x
    x = 121,807,299.12/11,055.20
  6. Step 6: Final answer
    x = 11,018.10

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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.