Home / 9,642.15-13,306.35-5,865.48

Finding the Fourth Proportional to 9,642.15, 13,306.35 and 5,865.48

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Solution

The fourth proportional to 9,642.15, 13,306.35 and 5,865.48 is: 8,094.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,642.15 : 13,306.35 = 5,865.48 : x
  2. Step 2: Convert to fraction form
    9,642.15/13,306.35 = 5,865.48/x
  3. Step 3: Cross multiply
    9,642.15x = 13,306.35 × 5,865.48
  4. Step 4: Simplify right side
    9,642.15x = 78,048,129.80
  5. Step 5: Solve for x
    x = 78,048,129.80/9,642.15
  6. Step 6: Final answer
    x = 8,094.47

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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.