Home / 13,526.80-20,276.40-9,144.70

Finding the Fourth Proportional to 13,526.80, 20,276.40 and 9,144.70

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Solution

The fourth proportional to 13,526.80, 20,276.40 and 9,144.70 is: 13,707.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,526.80 : 20,276.40 = 9,144.70 : x
  2. Step 2: Convert to fraction form
    13,526.80/20,276.40 = 9,144.70/x
  3. Step 3: Cross multiply
    13,526.80x = 20,276.40 × 9,144.70
  4. Step 4: Simplify right side
    13,526.80x = 185,421,595.08
  5. Step 5: Solve for x
    x = 185,421,595.08/13,526.80
  6. Step 6: Final answer
    x = 13,707.72

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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.