Home / 19,410.76-26,787.79-10,915.55

Finding the Fourth Proportional to 19,410.76, 26,787.79 and 10,915.55

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Solution

The fourth proportional to 19,410.76, 26,787.79 and 10,915.55 is: 15,063.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,410.76 : 26,787.79 = 10,915.55 : x
  2. Step 2: Convert to fraction form
    19,410.76/26,787.79 = 10,915.55/x
  3. Step 3: Cross multiply
    19,410.76x = 26,787.79 × 10,915.55
  4. Step 4: Simplify right side
    19,410.76x = 292,403,461.13
  5. Step 5: Solve for x
    x = 292,403,461.13/19,410.76
  6. Step 6: Final answer
    x = 15,063.99

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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.