Home / 13,590.40-20,366.40-10,052.80

Finding the Fourth Proportional to 13,590.40, 20,366.40 and 10,052.80

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Solution

The fourth proportional to 13,590.40, 20,366.40 and 10,052.80 is: 15,065.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,590.40 : 20,366.40 = 10,052.80 : x
  2. Step 2: Convert to fraction form
    13,590.40/20,366.40 = 10,052.80/x
  3. Step 3: Cross multiply
    13,590.40x = 20,366.40 × 10,052.80
  4. Step 4: Simplify right side
    13,590.40x = 204,739,345.92
  5. Step 5: Solve for x
    x = 204,739,345.92/13,590.40
  6. Step 6: Final answer
    x = 15,065.00

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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.