Home / 18,710.10-28,077.45-7,023.32

Finding the Fourth Proportional to 18,710.10, 28,077.45 and 7,023.32

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Solution

The fourth proportional to 18,710.10, 28,077.45 and 7,023.32 is: 10,539.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,710.10 : 28,077.45 = 7,023.32 : x
  2. Step 2: Convert to fraction form
    18,710.10/28,077.45 = 7,023.32/x
  3. Step 3: Cross multiply
    18,710.10x = 28,077.45 × 7,023.32
  4. Step 4: Simplify right side
    18,710.10x = 197,196,916.13
  5. Step 5: Solve for x
    x = 197,196,916.13/18,710.10
  6. Step 6: Final answer
    x = 10,539.60

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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.