Home / 7,165.12-9,889.93-4,332.50

Finding the Fourth Proportional to 7,165.12, 9,889.93 and 4,332.50

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Solution

The fourth proportional to 7,165.12, 9,889.93 and 4,332.50 is: 5,980.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,165.12 : 9,889.93 = 4,332.50 : x
  2. Step 2: Convert to fraction form
    7,165.12/9,889.93 = 4,332.50/x
  3. Step 3: Cross multiply
    7,165.12x = 9,889.93 × 4,332.50
  4. Step 4: Simplify right side
    7,165.12x = 42,848,121.73
  5. Step 5: Solve for x
    x = 42,848,121.73/7,165.12
  6. Step 6: Final answer
    x = 5,980.10

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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.