Home / 12,875.49-19,309.59-4,977.45

Finding the Fourth Proportional to 12,875.49, 19,309.59 and 4,977.45

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Solution

The fourth proportional to 12,875.49, 19,309.59 and 4,977.45 is: 7,464.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,875.49 : 19,309.59 = 4,977.45 : x
  2. Step 2: Convert to fraction form
    12,875.49/19,309.59 = 4,977.45/x
  3. Step 3: Cross multiply
    12,875.49x = 19,309.59 × 4,977.45
  4. Step 4: Simplify right side
    12,875.49x = 96,112,518.75
  5. Step 5: Solve for x
    x = 96,112,518.75/12,875.49
  6. Step 6: Final answer
    x = 7,464.77

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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.