Home / 13,670.59-18,865.47-7,702.35

Finding the Fourth Proportional to 13,670.59, 18,865.47 and 7,702.35

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Solution

The fourth proportional to 13,670.59, 18,865.47 and 7,702.35 is: 10,629.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,670.59 : 18,865.47 = 7,702.35 : x
  2. Step 2: Convert to fraction form
    13,670.59/18,865.47 = 7,702.35/x
  3. Step 3: Cross multiply
    13,670.59x = 18,865.47 × 7,702.35
  4. Step 4: Simplify right side
    13,670.59x = 145,308,452.85
  5. Step 5: Solve for x
    x = 145,308,452.85/13,670.59
  6. Step 6: Final answer
    x = 10,629.27

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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.