Home / 15,688.80-23,536.13-5,159.42

Finding the Fourth Proportional to 15,688.80, 23,536.13 and 5,159.42

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Solution

The fourth proportional to 15,688.80, 23,536.13 and 5,159.42 is: 7,740.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,688.80 : 23,536.13 = 5,159.42 : x
  2. Step 2: Convert to fraction form
    15,688.80/23,536.13 = 5,159.42/x
  3. Step 3: Cross multiply
    15,688.80x = 23,536.13 × 5,159.42
  4. Step 4: Simplify right side
    15,688.80x = 121,432,636.37
  5. Step 5: Solve for x
    x = 121,432,636.37/15,688.80
  6. Step 6: Final answer
    x = 7,740.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.