Home / 10,341.30-15,511.95-5,412.45

Finding the Fourth Proportional to 10,341.30, 15,511.95 and 5,412.45

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Solution

The fourth proportional to 10,341.30, 15,511.95 and 5,412.45 is: 8,118.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,341.30 : 15,511.95 = 5,412.45 : x
  2. Step 2: Convert to fraction form
    10,341.30/15,511.95 = 5,412.45/x
  3. Step 3: Cross multiply
    10,341.30x = 15,511.95 × 5,412.45
  4. Step 4: Simplify right side
    10,341.30x = 83,957,653.78
  5. Step 5: Solve for x
    x = 83,957,653.78/10,341.30
  6. Step 6: Final answer
    x = 8,118.68

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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.