Home / 15,802.35-21,806.33-9,436.12

Finding the Fourth Proportional to 15,802.35, 21,806.33 and 9,436.12

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Solution

The fourth proportional to 15,802.35, 21,806.33 and 9,436.12 is: 13,021.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,802.35 : 21,806.33 = 9,436.12 : x
  2. Step 2: Convert to fraction form
    15,802.35/21,806.33 = 9,436.12/x
  3. Step 3: Cross multiply
    15,802.35x = 21,806.33 × 9,436.12
  4. Step 4: Simplify right side
    15,802.35x = 205,767,146.64
  5. Step 5: Solve for x
    x = 205,767,146.64/15,802.35
  6. Step 6: Final answer
    x = 13,021.30

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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.