Home / 8,122.26-11,205.40-5,470.52

Finding the Fourth Proportional to 8,122.26, 11,205.40 and 5,470.52

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Solution

The fourth proportional to 8,122.26, 11,205.40 and 5,470.52 is: 7,547.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,122.26 : 11,205.40 = 5,470.52 : x
  2. Step 2: Convert to fraction form
    8,122.26/11,205.40 = 5,470.52/x
  3. Step 3: Cross multiply
    8,122.26x = 11,205.40 × 5,470.52
  4. Step 4: Simplify right side
    8,122.26x = 61,299,364.81
  5. Step 5: Solve for x
    x = 61,299,364.81/8,122.26
  6. Step 6: Final answer
    x = 7,547.08

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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.