Home / 19,123.28-26,389.96-10,739.76

Finding the Fourth Proportional to 19,123.28, 26,389.96 and 10,739.76

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Solution

The fourth proportional to 19,123.28, 26,389.96 and 10,739.76 is: 14,820.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,123.28 : 26,389.96 = 10,739.76 : x
  2. Step 2: Convert to fraction form
    19,123.28/26,389.96 = 10,739.76/x
  3. Step 3: Cross multiply
    19,123.28x = 26,389.96 × 10,739.76
  4. Step 4: Simplify right side
    19,123.28x = 283,421,836.81
  5. Step 5: Solve for x
    x = 283,421,836.81/19,123.28
  6. Step 6: Final answer
    x = 14,820.78

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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.