Home / 18,316.63-25,272.70-12,656.35

Finding the Fourth Proportional to 18,316.63, 25,272.70 and 12,656.35

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Solution

The fourth proportional to 18,316.63, 25,272.70 and 12,656.35 is: 17,462.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,316.63 : 25,272.70 = 12,656.35 : x
  2. Step 2: Convert to fraction form
    18,316.63/25,272.70 = 12,656.35/x
  3. Step 3: Cross multiply
    18,316.63x = 25,272.70 × 12,656.35
  4. Step 4: Simplify right side
    18,316.63x = 319,860,136.65
  5. Step 5: Solve for x
    x = 319,860,136.65/18,316.63
  6. Step 6: Final answer
    x = 17,462.83

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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.