Home / 42,764.15-64,146.26-11,599.40

Finding the Fourth Proportional to 42,764.15, 64,146.26 and 11,599.40

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Solution

The fourth proportional to 42,764.15, 64,146.26 and 11,599.40 is: 17,399.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,764.15 : 64,146.26 = 11,599.40 : x
  2. Step 2: Convert to fraction form
    42,764.15/64,146.26 = 11,599.40/x
  3. Step 3: Cross multiply
    42,764.15x = 64,146.26 × 11,599.40
  4. Step 4: Simplify right side
    42,764.15x = 744,058,317.61
  5. Step 5: Solve for x
    x = 744,058,317.61/42,764.15
  6. Step 6: Final answer
    x = 17,399.11

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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.