Home / 10,178.29-15,244.88-7,820.94

Finding the Fourth Proportional to 10,178.29, 15,244.88 and 7,820.94

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Solution

The fourth proportional to 10,178.29, 15,244.88 and 7,820.94 is: 11,714.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,178.29 : 15,244.88 = 7,820.94 : x
  2. Step 2: Convert to fraction form
    10,178.29/15,244.88 = 7,820.94/x
  3. Step 3: Cross multiply
    10,178.29x = 15,244.88 × 7,820.94
  4. Step 4: Simplify right side
    10,178.29x = 119,229,291.79
  5. Step 5: Solve for x
    x = 119,229,291.79/10,178.29
  6. Step 6: Final answer
    x = 11,714.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.