Home / 10,345.58-15,520.08-4,105.63

Finding the Fourth Proportional to 10,345.58, 15,520.08 and 4,105.63

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Solution

The fourth proportional to 10,345.58, 15,520.08 and 4,105.63 is: 6,159.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,345.58 : 15,520.08 = 4,105.63 : x
  2. Step 2: Convert to fraction form
    10,345.58/15,520.08 = 4,105.63/x
  3. Step 3: Cross multiply
    10,345.58x = 15,520.08 × 4,105.63
  4. Step 4: Simplify right side
    10,345.58x = 63,719,706.05
  5. Step 5: Solve for x
    x = 63,719,706.05/10,345.58
  6. Step 6: Final answer
    x = 6,159.12

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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.