Home / 15,017.85-20,700.77-11,826.08

Finding the Fourth Proportional to 15,017.85, 20,700.77 and 11,826.08

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Solution

The fourth proportional to 15,017.85, 20,700.77 and 11,826.08 is: 16,301.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,017.85 : 20,700.77 = 11,826.08 : x
  2. Step 2: Convert to fraction form
    15,017.85/20,700.77 = 11,826.08/x
  3. Step 3: Cross multiply
    15,017.85x = 20,700.77 × 11,826.08
  4. Step 4: Simplify right side
    15,017.85x = 244,808,962.08
  5. Step 5: Solve for x
    x = 244,808,962.08/15,017.85
  6. Step 6: Final answer
    x = 16,301.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.