Home / 42,683.40-64,026.24-11,518.56

Finding the Fourth Proportional to 42,683.40, 64,026.24 and 11,518.56

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Solution

The fourth proportional to 42,683.40, 64,026.24 and 11,518.56 is: 17,278.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,683.40 : 64,026.24 = 11,518.56 : x
  2. Step 2: Convert to fraction form
    42,683.40/64,026.24 = 11,518.56/x
  3. Step 3: Cross multiply
    42,683.40x = 64,026.24 × 11,518.56
  4. Step 4: Simplify right side
    42,683.40x = 737,490,087.01
  5. Step 5: Solve for x
    x = 737,490,087.01/42,683.40
  6. Step 6: Final answer
    x = 17,278.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.