Home / 19,718.40-27,211.43-10,765.90

Finding the Fourth Proportional to 19,718.40, 27,211.43 and 10,765.90

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Solution

The fourth proportional to 19,718.40, 27,211.43 and 10,765.90 is: 14,856.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,718.40 : 27,211.43 = 10,765.90 : x
  2. Step 2: Convert to fraction form
    19,718.40/27,211.43 = 10,765.90/x
  3. Step 3: Cross multiply
    19,718.40x = 27,211.43 × 10,765.90
  4. Step 4: Simplify right side
    19,718.40x = 292,955,534.24
  5. Step 5: Solve for x
    x = 292,955,534.24/19,718.40
  6. Step 6: Final answer
    x = 14,856.96

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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.