Home / 19,679.34-27,157.65-10,726.89

Finding the Fourth Proportional to 19,679.34, 27,157.65 and 10,726.89

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Solution

The fourth proportional to 19,679.34, 27,157.65 and 10,726.89 is: 14,803.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,679.34 : 27,157.65 = 10,726.89 : x
  2. Step 2: Convert to fraction form
    19,679.34/27,157.65 = 10,726.89/x
  3. Step 3: Cross multiply
    19,679.34x = 27,157.65 × 10,726.89
  4. Step 4: Simplify right side
    19,679.34x = 291,317,124.21
  5. Step 5: Solve for x
    x = 291,317,124.21/19,679.34
  6. Step 6: Final answer
    x = 14,803.20

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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.