Home / 13,959.12-19,263.60-7,671.36

Finding the Fourth Proportional to 13,959.12, 19,263.60 and 7,671.36

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Solution

The fourth proportional to 13,959.12, 19,263.60 and 7,671.36 is: 10,586.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,959.12 : 19,263.60 = 7,671.36 : x
  2. Step 2: Convert to fraction form
    13,959.12/19,263.60 = 7,671.36/x
  3. Step 3: Cross multiply
    13,959.12x = 19,263.60 × 7,671.36
  4. Step 4: Simplify right side
    13,959.12x = 147,778,010.50
  5. Step 5: Solve for x
    x = 147,778,010.50/13,959.12
  6. Step 6: Final answer
    x = 10,586.48

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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.