Home / 8,987.10-12,346.46-7,410.30

Finding the Fourth Proportional to 8,987.10, 12,346.46 and 7,410.30

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Solution

The fourth proportional to 8,987.10, 12,346.46 and 7,410.30 is: 10,180.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,987.10 : 12,346.46 = 7,410.30 : x
  2. Step 2: Convert to fraction form
    8,987.10/12,346.46 = 7,410.30/x
  3. Step 3: Cross multiply
    8,987.10x = 12,346.46 × 7,410.30
  4. Step 4: Simplify right side
    8,987.10x = 91,490,935.49
  5. Step 5: Solve for x
    x = 91,490,935.49/8,987.10
  6. Step 6: Final answer
    x = 10,180.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.