Home / 9,965.55-13,749.93-6,424.50

Finding the Fourth Proportional to 9,965.55, 13,749.93 and 6,424.50

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Solution

The fourth proportional to 9,965.55, 13,749.93 and 6,424.50 is: 8,864.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,965.55 : 13,749.93 = 6,424.50 : x
  2. Step 2: Convert to fraction form
    9,965.55/13,749.93 = 6,424.50/x
  3. Step 3: Cross multiply
    9,965.55x = 13,749.93 × 6,424.50
  4. Step 4: Simplify right side
    9,965.55x = 88,336,425.29
  5. Step 5: Solve for x
    x = 88,336,425.29/9,965.55
  6. Step 6: Final answer
    x = 8,864.18

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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.