Home / 11,143.49-15,374.95-6,892.50

Finding the Fourth Proportional to 11,143.49, 15,374.95 and 6,892.50

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Solution

The fourth proportional to 11,143.49, 15,374.95 and 6,892.50 is: 9,509.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,143.49 : 15,374.95 = 6,892.50 : x
  2. Step 2: Convert to fraction form
    11,143.49/15,374.95 = 6,892.50/x
  3. Step 3: Cross multiply
    11,143.49x = 15,374.95 × 6,892.50
  4. Step 4: Simplify right side
    11,143.49x = 105,971,883.30
  5. Step 5: Solve for x
    x = 105,971,883.30/11,143.49
  6. Step 6: Final answer
    x = 9,509.76

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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.