Home / 7,415.62-10,219.40-5,316.10

Finding the Fourth Proportional to 7,415.62, 10,219.40 and 5,316.10

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Solution

The fourth proportional to 7,415.62, 10,219.40 and 5,316.10 is: 7,326.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,415.62 : 10,219.40 = 5,316.10 : x
  2. Step 2: Convert to fraction form
    7,415.62/10,219.40 = 5,316.10/x
  3. Step 3: Cross multiply
    7,415.62x = 10,219.40 × 5,316.10
  4. Step 4: Simplify right side
    7,415.62x = 54,327,352.34
  5. Step 5: Solve for x
    x = 54,327,352.34/7,415.62
  6. Step 6: Final answer
    x = 7,326.07

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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.