Home / 13,911.16-20,862.85-5,903.19

Finding the Fourth Proportional to 13,911.16, 20,862.85 and 5,903.19

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Solution

The fourth proportional to 13,911.16, 20,862.85 and 5,903.19 is: 8,853.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,911.16 : 20,862.85 = 5,903.19 : x
  2. Step 2: Convert to fraction form
    13,911.16/20,862.85 = 5,903.19/x
  3. Step 3: Cross multiply
    13,911.16x = 20,862.85 × 5,903.19
  4. Step 4: Simplify right side
    13,911.16x = 123,157,367.49
  5. Step 5: Solve for x
    x = 123,157,367.49/13,911.16
  6. Step 6: Final answer
    x = 8,853.13

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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.