Home / 13,688.20-20,526.81-5,794.33

Finding the Fourth Proportional to 13,688.20, 20,526.81 and 5,794.33

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Solution

The fourth proportional to 13,688.20, 20,526.81 and 5,794.33 is: 8,689.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,688.20 : 20,526.81 = 5,794.33 : x
  2. Step 2: Convert to fraction form
    13,688.20/20,526.81 = 5,794.33/x
  3. Step 3: Cross multiply
    13,688.20x = 20,526.81 × 5,794.33
  4. Step 4: Simplify right side
    13,688.20x = 118,939,110.99
  5. Step 5: Solve for x
    x = 118,939,110.99/13,688.20
  6. Step 6: Final answer
    x = 8,689.17

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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.