Home / 18,693.78-28,034.59-6,210.45

Finding the Fourth Proportional to 18,693.78, 28,034.59 and 6,210.45

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Solution

The fourth proportional to 18,693.78, 28,034.59 and 6,210.45 is: 9,313.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,693.78 : 28,034.59 = 6,210.45 : x
  2. Step 2: Convert to fraction form
    18,693.78/28,034.59 = 6,210.45/x
  3. Step 3: Cross multiply
    18,693.78x = 28,034.59 × 6,210.45
  4. Step 4: Simplify right side
    18,693.78x = 174,107,419.47
  5. Step 5: Solve for x
    x = 174,107,419.47/18,693.78
  6. Step 6: Final answer
    x = 9,313.66

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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.