Home / 10,455.83-15,685.67-3,436.23

Finding the Fourth Proportional to 10,455.83, 15,685.67 and 3,436.23

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Solution

The fourth proportional to 10,455.83, 15,685.67 and 3,436.23 is: 5,154.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,455.83 : 15,685.67 = 3,436.23 : x
  2. Step 2: Convert to fraction form
    10,455.83/15,685.67 = 3,436.23/x
  3. Step 3: Cross multiply
    10,455.83x = 15,685.67 × 3,436.23
  4. Step 4: Simplify right side
    10,455.83x = 53,899,637.24
  5. Step 5: Solve for x
    x = 53,899,637.24/10,455.83
  6. Step 6: Final answer
    x = 5,154.98

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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.