Home / 10,121.09-15,188.36-3,547.26

Finding the Fourth Proportional to 10,121.09, 15,188.36 and 3,547.26

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Solution

The fourth proportional to 10,121.09, 15,188.36 and 3,547.26 is: 5,323.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,121.09 : 15,188.36 = 3,547.26 : x
  2. Step 2: Convert to fraction form
    10,121.09/15,188.36 = 3,547.26/x
  3. Step 3: Cross multiply
    10,121.09x = 15,188.36 × 3,547.26
  4. Step 4: Simplify right side
    10,121.09x = 53,877,044.16
  5. Step 5: Solve for x
    x = 53,877,044.16/10,121.09
  6. Step 6: Final answer
    x = 5,323.25

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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.