Home / 15,370.42-21,211.24-8,656.06

Finding the Fourth Proportional to 15,370.42, 21,211.24 and 8,656.06

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Solution

The fourth proportional to 15,370.42, 21,211.24 and 8,656.06 is: 11,945.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,370.42 : 21,211.24 = 8,656.06 : x
  2. Step 2: Convert to fraction form
    15,370.42/21,211.24 = 8,656.06/x
  3. Step 3: Cross multiply
    15,370.42x = 21,211.24 × 8,656.06
  4. Step 4: Simplify right side
    15,370.42x = 183,605,766.11
  5. Step 5: Solve for x
    x = 183,605,766.11/15,370.42
  6. Step 6: Final answer
    x = 11,945.40

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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.