Home / 18,985.04-28,478.02-5,837.54

Finding the Fourth Proportional to 18,985.04, 28,478.02 and 5,837.54

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Solution

The fourth proportional to 18,985.04, 28,478.02 and 5,837.54 is: 8,756.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,985.04 : 28,478.02 = 5,837.54 : x
  2. Step 2: Convert to fraction form
    18,985.04/28,478.02 = 5,837.54/x
  3. Step 3: Cross multiply
    18,985.04x = 28,478.02 × 5,837.54
  4. Step 4: Simplify right side
    18,985.04x = 166,241,580.87
  5. Step 5: Solve for x
    x = 166,241,580.87/18,985.04
  6. Step 6: Final answer
    x = 8,756.45

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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.