Home / 19,787.50-27,306.76-10,955.50

Finding the Fourth Proportional to 19,787.50, 27,306.76 and 10,955.50

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Solution

The fourth proportional to 19,787.50, 27,306.76 and 10,955.50 is: 15,118.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,787.50 : 27,306.76 = 10,955.50 : x
  2. Step 2: Convert to fraction form
    19,787.50/27,306.76 = 10,955.50/x
  3. Step 3: Cross multiply
    19,787.50x = 27,306.76 × 10,955.50
  4. Step 4: Simplify right side
    19,787.50x = 299,159,209.18
  5. Step 5: Solve for x
    x = 299,159,209.18/19,787.50
  6. Step 6: Final answer
    x = 15,118.60

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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.