Home / 10,255.70-14,153.93-6,279.45

Finding the Fourth Proportional to 10,255.70, 14,153.93 and 6,279.45

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Solution

The fourth proportional to 10,255.70, 14,153.93 and 6,279.45 is: 8,666.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,255.70 : 14,153.93 = 6,279.45 : x
  2. Step 2: Convert to fraction form
    10,255.70/14,153.93 = 6,279.45/x
  3. Step 3: Cross multiply
    10,255.70x = 14,153.93 × 6,279.45
  4. Step 4: Simplify right side
    10,255.70x = 88,878,864.34
  5. Step 5: Solve for x
    x = 88,878,864.34/10,255.70
  6. Step 6: Final answer
    x = 8,666.29

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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.