Home / 9,316.21-12,855.29-5,337.09

Finding the Fourth Proportional to 9,316.21, 12,855.29 and 5,337.09

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Solution

The fourth proportional to 9,316.21, 12,855.29 and 5,337.09 is: 7,364.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,316.21 : 12,855.29 = 5,337.09 : x
  2. Step 2: Convert to fraction form
    9,316.21/12,855.29 = 5,337.09/x
  3. Step 3: Cross multiply
    9,316.21x = 12,855.29 × 5,337.09
  4. Step 4: Simplify right side
    9,316.21x = 68,609,839.71
  5. Step 5: Solve for x
    x = 68,609,839.71/9,316.21
  6. Step 6: Final answer
    x = 7,364.57

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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.