Home / 18,913.28-26,101.52-10,529.76

Finding the Fourth Proportional to 18,913.28, 26,101.52 and 10,529.76

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Solution

The fourth proportional to 18,913.28, 26,101.52 and 10,529.76 is: 14,531.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,913.28 : 26,101.52 = 10,529.76 : x
  2. Step 2: Convert to fraction form
    18,913.28/26,101.52 = 10,529.76/x
  3. Step 3: Cross multiply
    18,913.28x = 26,101.52 × 10,529.76
  4. Step 4: Simplify right side
    18,913.28x = 274,842,741.24
  5. Step 5: Solve for x
    x = 274,842,741.24/18,913.28
  6. Step 6: Final answer
    x = 14,531.73

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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.