Home / 7,854.21-11,781.36-2,307.53

Finding the Fourth Proportional to 7,854.21, 11,781.36 and 2,307.53

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Solution

The fourth proportional to 7,854.21, 11,781.36 and 2,307.53 is: 3,461.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,854.21 : 11,781.36 = 2,307.53 : x
  2. Step 2: Convert to fraction form
    7,854.21/11,781.36 = 2,307.53/x
  3. Step 3: Cross multiply
    7,854.21x = 11,781.36 × 2,307.53
  4. Step 4: Simplify right side
    7,854.21x = 27,185,841.64
  5. Step 5: Solve for x
    x = 27,185,841.64/7,854.21
  6. Step 6: Final answer
    x = 3,461.31

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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.