Home / 10,315.78-14,235.36-5,599.96

Finding the Fourth Proportional to 10,315.78, 14,235.36 and 5,599.96

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Solution

The fourth proportional to 10,315.78, 14,235.36 and 5,599.96 is: 7,727.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,315.78 : 14,235.36 = 5,599.96 : x
  2. Step 2: Convert to fraction form
    10,315.78/14,235.36 = 5,599.96/x
  3. Step 3: Cross multiply
    10,315.78x = 14,235.36 × 5,599.96
  4. Step 4: Simplify right side
    10,315.78x = 79,717,446.59
  5. Step 5: Solve for x
    x = 79,717,446.59/10,315.78
  6. Step 6: Final answer
    x = 7,727.72

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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.