Home / 9,415.40-12,994.02-5,225

Finding the Fourth Proportional to 9,415.40, 12,994.02 and 5,225

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Solution

The fourth proportional to 9,415.40, 12,994.02 and 5,225 is: 7,210.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,415.40 : 12,994.02 = 5,225 : x
  2. Step 2: Convert to fraction form
    9,415.40/12,994.02 = 5,225/x
  3. Step 3: Cross multiply
    9,415.40x = 12,994.02 × 5,225
  4. Step 4: Simplify right side
    9,415.40x = 67,893,754.50
  5. Step 5: Solve for x
    x = 67,893,754.50/9,415.40
  6. Step 6: Final answer
    x = 7,210.93

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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.