Home / 12,515.00-18,774.54-5,117.46

Finding the Fourth Proportional to 12,515.00, 18,774.54 and 5,117.46

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Solution

The fourth proportional to 12,515.00, 18,774.54 and 5,117.46 is: 7,677.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,515.00 : 18,774.54 = 5,117.46 : x
  2. Step 2: Convert to fraction form
    12,515.00/18,774.54 = 5,117.46/x
  3. Step 3: Cross multiply
    12,515.00x = 18,774.54 × 5,117.46
  4. Step 4: Simplify right side
    12,515.00x = 96,077,957.47
  5. Step 5: Solve for x
    x = 96,077,957.47/12,515.00
  6. Step 6: Final answer
    x = 7,677.03

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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.