Home / 12,820.57-19,228.47-10,336.26

Finding the Fourth Proportional to 12,820.57, 19,228.47 and 10,336.26

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Solution

The fourth proportional to 12,820.57, 19,228.47 and 10,336.26 is: 15,502.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,820.57 : 19,228.47 = 10,336.26 : x
  2. Step 2: Convert to fraction form
    12,820.57/19,228.47 = 10,336.26/x
  3. Step 3: Cross multiply
    12,820.57x = 19,228.47 × 10,336.26
  4. Step 4: Simplify right side
    12,820.57x = 198,750,465.32
  5. Step 5: Solve for x
    x = 198,750,465.32/12,820.57
  6. Step 6: Final answer
    x = 15,502.47

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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.