Home / 12,535.74-18,787.22-5,131.76

Finding the Fourth Proportional to 12,535.74, 18,787.22 and 5,131.76

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Solution

The fourth proportional to 12,535.74, 18,787.22 and 5,131.76 is: 7,690.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,535.74 : 18,787.22 = 5,131.76 : x
  2. Step 2: Convert to fraction form
    12,535.74/18,787.22 = 5,131.76/x
  3. Step 3: Cross multiply
    12,535.74x = 18,787.22 × 5,131.76
  4. Step 4: Simplify right side
    12,535.74x = 96,411,384.51
  5. Step 5: Solve for x
    x = 96,411,384.51/12,535.74
  6. Step 6: Final answer
    x = 7,690.92

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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.