Home / 15,856.36-21,869.58-11,074.76

Finding the Fourth Proportional to 15,856.36, 21,869.58 and 11,074.76

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Solution

The fourth proportional to 15,856.36, 21,869.58 and 11,074.76 is: 15,274.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,856.36 : 21,869.58 = 11,074.76 : x
  2. Step 2: Convert to fraction form
    15,856.36/21,869.58 = 11,074.76/x
  3. Step 3: Cross multiply
    15,856.36x = 21,869.58 × 11,074.76
  4. Step 4: Simplify right side
    15,856.36x = 242,200,349.80
  5. Step 5: Solve for x
    x = 242,200,349.80/15,856.36
  6. Step 6: Final answer
    x = 15,274.65

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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.