Home / 19,220.64-26,515.28-11,257.92

Finding the Fourth Proportional to 19,220.64, 26,515.28 and 11,257.92

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Solution

The fourth proportional to 19,220.64, 26,515.28 and 11,257.92 is: 15,530.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,220.64 : 26,515.28 = 11,257.92 : x
  2. Step 2: Convert to fraction form
    19,220.64/26,515.28 = 11,257.92/x
  3. Step 3: Cross multiply
    19,220.64x = 26,515.28 × 11,257.92
  4. Step 4: Simplify right side
    19,220.64x = 298,506,901.02
  5. Step 5: Solve for x
    x = 298,506,901.02/19,220.64
  6. Step 6: Final answer
    x = 15,530.54

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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.