Home / 10,247.40-14,136.40-8,828.63

Finding the Fourth Proportional to 10,247.40, 14,136.40 and 8,828.63

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Solution

The fourth proportional to 10,247.40, 14,136.40 and 8,828.63 is: 12,179.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,247.40 : 14,136.40 = 8,828.63 : x
  2. Step 2: Convert to fraction form
    10,247.40/14,136.40 = 8,828.63/x
  3. Step 3: Cross multiply
    10,247.40x = 14,136.40 × 8,828.63
  4. Step 4: Simplify right side
    10,247.40x = 124,805,019.37
  5. Step 5: Solve for x
    x = 124,805,019.37/10,247.40
  6. Step 6: Final answer
    x = 12,179.19

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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.