Home / 8,461.80-11,677.30-4,685.22

Finding the Fourth Proportional to 8,461.80, 11,677.30 and 4,685.22

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Solution

The fourth proportional to 8,461.80, 11,677.30 and 4,685.22 is: 6,465.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,461.80 : 11,677.30 = 4,685.22 : x
  2. Step 2: Convert to fraction form
    8,461.80/11,677.30 = 4,685.22/x
  3. Step 3: Cross multiply
    8,461.80x = 11,677.30 × 4,685.22
  4. Step 4: Simplify right side
    8,461.80x = 54,710,719.51
  5. Step 5: Solve for x
    x = 54,710,719.51/8,461.80
  6. Step 6: Final answer
    x = 6,465.61

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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.