Home / 26,764.40-40,140.12-12,718.20

Finding the Fourth Proportional to 26,764.40, 40,140.12 and 12,718.20

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Solution

The fourth proportional to 26,764.40, 40,140.12 and 12,718.20 is: 19,074.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,764.40 : 40,140.12 = 12,718.20 : x
  2. Step 2: Convert to fraction form
    26,764.40/40,140.12 = 12,718.20/x
  3. Step 3: Cross multiply
    26,764.40x = 40,140.12 × 12,718.20
  4. Step 4: Simplify right side
    26,764.40x = 510,510,074.18
  5. Step 5: Solve for x
    x = 510,510,074.18/26,764.40
  6. Step 6: Final answer
    x = 19,074.22

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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.