Home / 15,444.12-21,312.88-8,370.54

Finding the Fourth Proportional to 15,444.12, 21,312.88 and 8,370.54

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Solution

The fourth proportional to 15,444.12, 21,312.88 and 8,370.54 is: 11,551.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,444.12 : 21,312.88 = 8,370.54 : x
  2. Step 2: Convert to fraction form
    15,444.12/21,312.88 = 8,370.54/x
  3. Step 3: Cross multiply
    15,444.12x = 21,312.88 × 8,370.54
  4. Step 4: Simplify right side
    15,444.12x = 178,400,293.63
  5. Step 5: Solve for x
    x = 178,400,293.63/15,444.12
  6. Step 6: Final answer
    x = 11,551.34

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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.