Home / 9,782.66-13,499.96-5,306.42

Finding the Fourth Proportional to 9,782.66, 13,499.96 and 5,306.42

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Solution

The fourth proportional to 9,782.66, 13,499.96 and 5,306.42 is: 7,322.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,782.66 : 13,499.96 = 5,306.42 : x
  2. Step 2: Convert to fraction form
    9,782.66/13,499.96 = 5,306.42/x
  3. Step 3: Cross multiply
    9,782.66x = 13,499.96 × 5,306.42
  4. Step 4: Simplify right side
    9,782.66x = 71,636,457.74
  5. Step 5: Solve for x
    x = 71,636,457.74/9,782.66
  6. Step 6: Final answer
    x = 7,322.80

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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.