Home / 15,370.32-21,211.72-8,655.95

Finding the Fourth Proportional to 15,370.32, 21,211.72 and 8,655.95

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Solution

The fourth proportional to 15,370.32, 21,211.72 and 8,655.95 is: 11,945.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,370.32 : 21,211.72 = 8,655.95 : x
  2. Step 2: Convert to fraction form
    15,370.32/21,211.72 = 8,655.95/x
  3. Step 3: Cross multiply
    15,370.32x = 21,211.72 × 8,655.95
  4. Step 4: Simplify right side
    15,370.32x = 183,607,587.73
  5. Step 5: Solve for x
    x = 183,607,587.73/15,370.32
  6. Step 6: Final answer
    x = 11,945.59

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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.