Home / 12,403.22-18,690.10-10,259.96

Finding the Fourth Proportional to 12,403.22, 18,690.10 and 10,259.96

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Solution

The fourth proportional to 12,403.22, 18,690.10 and 10,259.96 is: 15,460.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,403.22 : 18,690.10 = 10,259.96 : x
  2. Step 2: Convert to fraction form
    12,403.22/18,690.10 = 10,259.96/x
  3. Step 3: Cross multiply
    12,403.22x = 18,690.10 × 10,259.96
  4. Step 4: Simplify right side
    12,403.22x = 191,759,678.40
  5. Step 5: Solve for x
    x = 191,759,678.40/12,403.22
  6. Step 6: Final answer
    x = 15,460.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.