Home / 7,810.35-11,717.69-3,132.15

Finding the Fourth Proportional to 7,810.35, 11,717.69 and 3,132.15

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Solution

The fourth proportional to 7,810.35, 11,717.69 and 3,132.15 is: 4,699.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,810.35 : 11,717.69 = 3,132.15 : x
  2. Step 2: Convert to fraction form
    7,810.35/11,717.69 = 3,132.15/x
  3. Step 3: Cross multiply
    7,810.35x = 11,717.69 × 3,132.15
  4. Step 4: Simplify right side
    7,810.35x = 36,701,547.07
  5. Step 5: Solve for x
    x = 36,701,547.07/7,810.35
  6. Step 6: Final answer
    x = 4,699.09

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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.