Home / 26,534.80-39,788.50-7,812.40

Finding the Fourth Proportional to 26,534.80, 39,788.50 and 7,812.40

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Solution

The fourth proportional to 26,534.80, 39,788.50 and 7,812.40 is: 11,714.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,534.80 : 39,788.50 = 7,812.40 : x
  2. Step 2: Convert to fraction form
    26,534.80/39,788.50 = 7,812.40/x
  3. Step 3: Cross multiply
    26,534.80x = 39,788.50 × 7,812.40
  4. Step 4: Simplify right side
    26,534.80x = 310,843,677.40
  5. Step 5: Solve for x
    x = 310,843,677.40/26,534.80
  6. Step 6: Final answer
    x = 11,714.57

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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.