Home / 15,482.09-21,370.10-9,893.09

Finding the Fourth Proportional to 15,482.09, 21,370.10 and 9,893.09

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Solution

The fourth proportional to 15,482.09, 21,370.10 and 9,893.09 is: 13,655.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,482.09 : 21,370.10 = 9,893.09 : x
  2. Step 2: Convert to fraction form
    15,482.09/21,370.10 = 9,893.09/x
  3. Step 3: Cross multiply
    15,482.09x = 21,370.10 × 9,893.09
  4. Step 4: Simplify right side
    15,482.09x = 211,416,166.29
  5. Step 5: Solve for x
    x = 211,416,166.29/15,482.09
  6. Step 6: Final answer
    x = 13,655.54

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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.