Home / 13,125.48-19,686.94-4,918.12

Finding the Fourth Proportional to 13,125.48, 19,686.94 and 4,918.12

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Solution

The fourth proportional to 13,125.48, 19,686.94 and 4,918.12 is: 7,376.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,125.48 : 19,686.94 = 4,918.12 : x
  2. Step 2: Convert to fraction form
    13,125.48/19,686.94 = 4,918.12/x
  3. Step 3: Cross multiply
    13,125.48x = 19,686.94 × 4,918.12
  4. Step 4: Simplify right side
    13,125.48x = 96,822,733.35
  5. Step 5: Solve for x
    x = 96,822,733.35/13,125.48
  6. Step 6: Final answer
    x = 7,376.70

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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.