Home / 19,285.79-26,613-10,787.46

Finding the Fourth Proportional to 19,285.79, 26,613 and 10,787.46

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Solution

The fourth proportional to 19,285.79, 26,613 and 10,787.46 is: 14,885.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,285.79 : 26,613 = 10,787.46 : x
  2. Step 2: Convert to fraction form
    19,285.79/26,613 = 10,787.46/x
  3. Step 3: Cross multiply
    19,285.79x = 26,613 × 10,787.46
  4. Step 4: Simplify right side
    19,285.79x = 287,086,672.98
  5. Step 5: Solve for x
    x = 287,086,672.98/19,285.79
  6. Step 6: Final answer
    x = 14,885.92

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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.