Home / 15,814.78-21,842.33-10,770.23

Finding the Fourth Proportional to 15,814.78, 21,842.33 and 10,770.23

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Solution

The fourth proportional to 15,814.78, 21,842.33 and 10,770.23 is: 14,875.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,814.78 : 21,842.33 = 10,770.23 : x
  2. Step 2: Convert to fraction form
    15,814.78/21,842.33 = 10,770.23/x
  3. Step 3: Cross multiply
    15,814.78x = 21,842.33 × 10,770.23
  4. Step 4: Simplify right side
    15,814.78x = 235,246,918.59
  5. Step 5: Solve for x
    x = 235,246,918.59/15,814.78
  6. Step 6: Final answer
    x = 14,875.13

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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.