Home / 15,346.78-21,200.06-11,854.87

Finding the Fourth Proportional to 15,346.78, 21,200.06 and 11,854.87

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Solution

The fourth proportional to 15,346.78, 21,200.06 and 11,854.87 is: 16,376.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,346.78 : 21,200.06 = 11,854.87 : x
  2. Step 2: Convert to fraction form
    15,346.78/21,200.06 = 11,854.87/x
  3. Step 3: Cross multiply
    15,346.78x = 21,200.06 × 11,854.87
  4. Step 4: Simplify right side
    15,346.78x = 251,323,955.29
  5. Step 5: Solve for x
    x = 251,323,955.29/15,346.78
  6. Step 6: Final answer
    x = 16,376.33

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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.