Home / 12,709.48-19,066.77-4,389.80

Finding the Fourth Proportional to 12,709.48, 19,066.77 and 4,389.80

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Solution

The fourth proportional to 12,709.48, 19,066.77 and 4,389.80 is: 6,585.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,709.48 : 19,066.77 = 4,389.80 : x
  2. Step 2: Convert to fraction form
    12,709.48/19,066.77 = 4,389.80/x
  3. Step 3: Cross multiply
    12,709.48x = 19,066.77 × 4,389.80
  4. Step 4: Simplify right side
    12,709.48x = 83,699,306.95
  5. Step 5: Solve for x
    x = 83,699,306.95/12,709.48
  6. Step 6: Final answer
    x = 6,585.58

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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.