Home / 8,312.74-11,468.64-5,485.42

Finding the Fourth Proportional to 8,312.74, 11,468.64 and 5,485.42

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Solution

The fourth proportional to 8,312.74, 11,468.64 and 5,485.42 is: 7,567.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,312.74 : 11,468.64 = 5,485.42 : x
  2. Step 2: Convert to fraction form
    8,312.74/11,468.64 = 5,485.42/x
  3. Step 3: Cross multiply
    8,312.74x = 11,468.64 × 5,485.42
  4. Step 4: Simplify right side
    8,312.74x = 62,910,307.23
  5. Step 5: Solve for x
    x = 62,910,307.23/8,312.74
  6. Step 6: Final answer
    x = 7,567.94

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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.