Home / 12,686.10-19,029.27-5,666.46

Finding the Fourth Proportional to 12,686.10, 19,029.27 and 5,666.46

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Solution

The fourth proportional to 12,686.10, 19,029.27 and 5,666.46 is: 8,499.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,686.10 : 19,029.27 = 5,666.46 : x
  2. Step 2: Convert to fraction form
    12,686.10/19,029.27 = 5,666.46/x
  3. Step 3: Cross multiply
    12,686.10x = 19,029.27 × 5,666.46
  4. Step 4: Simplify right side
    12,686.10x = 107,828,597.28
  5. Step 5: Solve for x
    x = 107,828,597.28/12,686.10
  6. Step 6: Final answer
    x = 8,499.74

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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.