Home / 15,335.95-21,163.98-8,530.06

Finding the Fourth Proportional to 15,335.95, 21,163.98 and 8,530.06

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Solution

The fourth proportional to 15,335.95, 21,163.98 and 8,530.06 is: 11,771.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,335.95 : 21,163.98 = 8,530.06 : x
  2. Step 2: Convert to fraction form
    15,335.95/21,163.98 = 8,530.06/x
  3. Step 3: Cross multiply
    15,335.95x = 21,163.98 × 8,530.06
  4. Step 4: Simplify right side
    15,335.95x = 180,530,019.24
  5. Step 5: Solve for x
    x = 180,530,019.24/15,335.95
  6. Step 6: Final answer
    x = 11,771.69

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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.