Home / 42,890.74-64,334.05-11,726.06

Finding the Fourth Proportional to 42,890.74, 64,334.05 and 11,726.06

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Solution

The fourth proportional to 42,890.74, 64,334.05 and 11,726.06 is: 17,588.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,890.74 : 64,334.05 = 11,726.06 : x
  2. Step 2: Convert to fraction form
    42,890.74/64,334.05 = 11,726.06/x
  3. Step 3: Cross multiply
    42,890.74x = 64,334.05 × 11,726.06
  4. Step 4: Simplify right side
    42,890.74x = 754,384,930.34
  5. Step 5: Solve for x
    x = 754,384,930.34/42,890.74
  6. Step 6: Final answer
    x = 17,588.53

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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.