Home / 15,405.05-21,262.25-9,736.18

Finding the Fourth Proportional to 15,405.05, 21,262.25 and 9,736.18

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Solution

The fourth proportional to 15,405.05, 21,262.25 and 9,736.18 is: 13,438.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,405.05 : 21,262.25 = 9,736.18 : x
  2. Step 2: Convert to fraction form
    15,405.05/21,262.25 = 9,736.18/x
  3. Step 3: Cross multiply
    15,405.05x = 21,262.25 × 9,736.18
  4. Step 4: Simplify right side
    15,405.05x = 207,013,064.39
  5. Step 5: Solve for x
    x = 207,013,064.39/15,405.05
  6. Step 6: Final answer
    x = 13,438.00

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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.