Home / 10,509.31-15,763.95-2,717.50

Finding the Fourth Proportional to 10,509.31, 15,763.95 and 2,717.50

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Solution

The fourth proportional to 10,509.31, 15,763.95 and 2,717.50 is: 4,076.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,509.31 : 15,763.95 = 2,717.50 : x
  2. Step 2: Convert to fraction form
    10,509.31/15,763.95 = 2,717.50/x
  3. Step 3: Cross multiply
    10,509.31x = 15,763.95 × 2,717.50
  4. Step 4: Simplify right side
    10,509.31x = 42,838,534.13
  5. Step 5: Solve for x
    x = 42,838,534.13/10,509.31
  6. Step 6: Final answer
    x = 4,076.25

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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.