Home / 15,312.12-21,125.45-8,596.82

Finding the Fourth Proportional to 15,312.12, 21,125.45 and 8,596.82

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Solution

The fourth proportional to 15,312.12, 21,125.45 and 8,596.82 is: 11,860.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,312.12 : 21,125.45 = 8,596.82 : x
  2. Step 2: Convert to fraction form
    15,312.12/21,125.45 = 8,596.82/x
  3. Step 3: Cross multiply
    15,312.12x = 21,125.45 × 8,596.82
  4. Step 4: Simplify right side
    15,312.12x = 181,611,542.46
  5. Step 5: Solve for x
    x = 181,611,542.46/15,312.12
  6. Step 6: Final answer
    x = 11,860.64

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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.