Home / 10,418.50-14,378.28-6,875.56

Finding the Fourth Proportional to 10,418.50, 14,378.28 and 6,875.56

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Solution

The fourth proportional to 10,418.50, 14,378.28 and 6,875.56 is: 9,488.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,418.50 : 14,378.28 = 6,875.56 : x
  2. Step 2: Convert to fraction form
    10,418.50/14,378.28 = 6,875.56/x
  3. Step 3: Cross multiply
    10,418.50x = 14,378.28 × 6,875.56
  4. Step 4: Simplify right side
    10,418.50x = 98,858,726.84
  5. Step 5: Solve for x
    x = 98,858,726.84/10,418.50
  6. Step 6: Final answer
    x = 9,488.77

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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.