Home / 14,005.86-21,008.36-5,685.67

Finding the Fourth Proportional to 14,005.86, 21,008.36 and 5,685.67

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Solution

The fourth proportional to 14,005.86, 21,008.36 and 5,685.67 is: 8,528.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,005.86 : 21,008.36 = 5,685.67 : x
  2. Step 2: Convert to fraction form
    14,005.86/21,008.36 = 5,685.67/x
  3. Step 3: Cross multiply
    14,005.86x = 21,008.36 × 5,685.67
  4. Step 4: Simplify right side
    14,005.86x = 119,446,587.99
  5. Step 5: Solve for x
    x = 119,446,587.99/14,005.86
  6. Step 6: Final answer
    x = 8,528.33

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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.