Home / 10,347.12-14,279.09-5,631.39

Finding the Fourth Proportional to 10,347.12, 14,279.09 and 5,631.39

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Solution

The fourth proportional to 10,347.12, 14,279.09 and 5,631.39 is: 7,771.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,347.12 : 14,279.09 = 5,631.39 : x
  2. Step 2: Convert to fraction form
    10,347.12/14,279.09 = 5,631.39/x
  3. Step 3: Cross multiply
    10,347.12x = 14,279.09 × 5,631.39
  4. Step 4: Simplify right side
    10,347.12x = 80,411,096.48
  5. Step 5: Solve for x
    x = 80,411,096.48/10,347.12
  6. Step 6: Final answer
    x = 7,771.35

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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.