Home / 19,787.99-29,681.60-7,944.44

Finding the Fourth Proportional to 19,787.99, 29,681.60 and 7,944.44

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Solution

The fourth proportional to 19,787.99, 29,681.60 and 7,944.44 is: 11,916.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,787.99 : 29,681.60 = 7,944.44 : x
  2. Step 2: Convert to fraction form
    19,787.99/29,681.60 = 7,944.44/x
  3. Step 3: Cross multiply
    19,787.99x = 29,681.60 × 7,944.44
  4. Step 4: Simplify right side
    19,787.99x = 235,803,502.17
  5. Step 5: Solve for x
    x = 235,803,502.17/19,787.99
  6. Step 6: Final answer
    x = 11,916.50

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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.