Home / 8,655.12-12,979.44-4,754.16

Finding the Fourth Proportional to 8,655.12, 12,979.44 and 4,754.16

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Solution

The fourth proportional to 8,655.12, 12,979.44 and 4,754.16 is: 7,129.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,655.12 : 12,979.44 = 4,754.16 : x
  2. Step 2: Convert to fraction form
    8,655.12/12,979.44 = 4,754.16/x
  3. Step 3: Cross multiply
    8,655.12x = 12,979.44 × 4,754.16
  4. Step 4: Simplify right side
    8,655.12x = 61,706,334.47
  5. Step 5: Solve for x
    x = 61,706,334.47/8,655.12
  6. Step 6: Final answer
    x = 7,129.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.