Home / 14,404.48-19,880.76-8,435.80

Finding the Fourth Proportional to 14,404.48, 19,880.76 and 8,435.80

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Solution

The fourth proportional to 14,404.48, 19,880.76 and 8,435.80 is: 11,642.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,404.48 : 19,880.76 = 8,435.80 : x
  2. Step 2: Convert to fraction form
    14,404.48/19,880.76 = 8,435.80/x
  3. Step 3: Cross multiply
    14,404.48x = 19,880.76 × 8,435.80
  4. Step 4: Simplify right side
    14,404.48x = 167,710,115.21
  5. Step 5: Solve for x
    x = 167,710,115.21/14,404.48
  6. Step 6: Final answer
    x = 11,642.91

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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.