Home / 13,079.40-18,053.46-8,606.58

Finding the Fourth Proportional to 13,079.40, 18,053.46 and 8,606.58

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Solution

The fourth proportional to 13,079.40, 18,053.46 and 8,606.58 is: 11,879.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,079.40 : 18,053.46 = 8,606.58 : x
  2. Step 2: Convert to fraction form
    13,079.40/18,053.46 = 8,606.58/x
  3. Step 3: Cross multiply
    13,079.40x = 18,053.46 × 8,606.58
  4. Step 4: Simplify right side
    13,079.40x = 155,378,547.77
  5. Step 5: Solve for x
    x = 155,378,547.77/13,079.40
  6. Step 6: Final answer
    x = 11,879.64

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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.