Home / 7,338.60-11,009.52-4,220.10

Finding the Fourth Proportional to 7,338.60, 11,009.52 and 4,220.10

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Solution

The fourth proportional to 7,338.60, 11,009.52 and 4,220.10 is: 6,331.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,338.60 : 11,009.52 = 4,220.10 : x
  2. Step 2: Convert to fraction form
    7,338.60/11,009.52 = 4,220.10/x
  3. Step 3: Cross multiply
    7,338.60x = 11,009.52 × 4,220.10
  4. Step 4: Simplify right side
    7,338.60x = 46,461,275.35
  5. Step 5: Solve for x
    x = 46,461,275.35/7,338.60
  6. Step 6: Final answer
    x = 6,331.08

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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.