Home / 8,312.88-12,473.64-3,386.16

Finding the Fourth Proportional to 8,312.88, 12,473.64 and 3,386.16

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Solution

The fourth proportional to 8,312.88, 12,473.64 and 3,386.16 is: 5,081.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,312.88 : 12,473.64 = 3,386.16 : x
  2. Step 2: Convert to fraction form
    8,312.88/12,473.64 = 3,386.16/x
  3. Step 3: Cross multiply
    8,312.88x = 12,473.64 × 3,386.16
  4. Step 4: Simplify right side
    8,312.88x = 42,237,740.82
  5. Step 5: Solve for x
    x = 42,237,740.82/8,312.88
  6. Step 6: Final answer
    x = 5,081.00

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1.5x scale

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.