Home / 10,945.80-16,417.08-3,931.20

Finding the Fourth Proportional to 10,945.80, 16,417.08 and 3,931.20

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Solution

The fourth proportional to 10,945.80, 16,417.08 and 3,931.20 is: 5,896.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,945.80 : 16,417.08 = 3,931.20 : x
  2. Step 2: Convert to fraction form
    10,945.80/16,417.08 = 3,931.20/x
  3. Step 3: Cross multiply
    10,945.80x = 16,417.08 × 3,931.20
  4. Step 4: Simplify right side
    10,945.80x = 64,538,824.90
  5. Step 5: Solve for x
    x = 64,538,824.90/10,945.80
  6. Step 6: Final answer
    x = 5,896.22

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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.