Home / 18,358.86-27,539.34-5,210.18

Finding the Fourth Proportional to 18,358.86, 27,539.34 and 5,210.18

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Solution

The fourth proportional to 18,358.86, 27,539.34 and 5,210.18 is: 7,815.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,358.86 : 27,539.34 = 5,210.18 : x
  2. Step 2: Convert to fraction form
    18,358.86/27,539.34 = 5,210.18/x
  3. Step 3: Cross multiply
    18,358.86x = 27,539.34 × 5,210.18
  4. Step 4: Simplify right side
    18,358.86x = 143,484,918.48
  5. Step 5: Solve for x
    x = 143,484,918.48/18,358.86
  6. Step 6: Final answer
    x = 7,815.57

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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.