Home / 14,122.32-19,489.16-7,834.80

Finding the Fourth Proportional to 14,122.32, 19,489.16 and 7,834.80

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Solution

The fourth proportional to 14,122.32, 19,489.16 and 7,834.80 is: 10,812.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,122.32 : 19,489.16 = 7,834.80 : x
  2. Step 2: Convert to fraction form
    14,122.32/19,489.16 = 7,834.80/x
  3. Step 3: Cross multiply
    14,122.32x = 19,489.16 × 7,834.80
  4. Step 4: Simplify right side
    14,122.32x = 152,693,670.77
  5. Step 5: Solve for x
    x = 152,693,670.77/14,122.32
  6. Step 6: Final answer
    x = 10,812.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.