Home / 12,919.93-17,829.63-7,330.49

Finding the Fourth Proportional to 12,919.93, 17,829.63 and 7,330.49

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Solution

The fourth proportional to 12,919.93, 17,829.63 and 7,330.49 is: 10,116.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,919.93 : 17,829.63 = 7,330.49 : x
  2. Step 2: Convert to fraction form
    12,919.93/17,829.63 = 7,330.49/x
  3. Step 3: Cross multiply
    12,919.93x = 17,829.63 × 7,330.49
  4. Step 4: Simplify right side
    12,919.93x = 130,699,887.77
  5. Step 5: Solve for x
    x = 130,699,887.77/12,919.93
  6. Step 6: Final answer
    x = 10,116.15

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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.