Home / 14,210.79-21,320.97-8,939.67

Finding the Fourth Proportional to 14,210.79, 21,320.97 and 8,939.67

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Solution

The fourth proportional to 14,210.79, 21,320.97 and 8,939.67 is: 13,412.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,210.79 : 21,320.97 = 8,939.67 : x
  2. Step 2: Convert to fraction form
    14,210.79/21,320.97 = 8,939.67/x
  3. Step 3: Cross multiply
    14,210.79x = 21,320.97 × 8,939.67
  4. Step 4: Simplify right side
    14,210.79x = 190,602,372.69
  5. Step 5: Solve for x
    x = 190,602,372.69/14,210.79
  6. Step 6: Final answer
    x = 13,412.51

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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.