Home / 13,703.40-20,563.20-9,036.90

Finding the Fourth Proportional to 13,703.40, 20,563.20 and 9,036.90

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Solution

The fourth proportional to 13,703.40, 20,563.20 and 9,036.90 is: 13,560.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,703.40 : 20,563.20 = 9,036.90 : x
  2. Step 2: Convert to fraction form
    13,703.40/20,563.20 = 9,036.90/x
  3. Step 3: Cross multiply
    13,703.40x = 20,563.20 × 9,036.90
  4. Step 4: Simplify right side
    13,703.40x = 185,827,582.08
  5. Step 5: Solve for x
    x = 185,827,582.08/13,703.40
  6. Step 6: Final answer
    x = 13,560.69

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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.