Home / 6,403.55-9,615.74-3,953.95

Finding the Fourth Proportional to 6,403.55, 9,615.74 and 3,953.95

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Solution

The fourth proportional to 6,403.55, 9,615.74 and 3,953.95 is: 5,937.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,403.55 : 9,615.74 = 3,953.95 : x
  2. Step 2: Convert to fraction form
    6,403.55/9,615.74 = 3,953.95/x
  3. Step 3: Cross multiply
    6,403.55x = 9,615.74 × 3,953.95
  4. Step 4: Simplify right side
    6,403.55x = 38,020,111.36
  5. Step 5: Solve for x
    x = 38,020,111.36/6,403.55
  6. Step 6: Final answer
    x = 5,937.35

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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.