Home / 13,526.90-20,290.35-5,210.83

Finding the Fourth Proportional to 13,526.90, 20,290.35 and 5,210.83

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Solution

The fourth proportional to 13,526.90, 20,290.35 and 5,210.83 is: 7,816.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,526.90 : 20,290.35 = 5,210.83 : x
  2. Step 2: Convert to fraction form
    13,526.90/20,290.35 = 5,210.83/x
  3. Step 3: Cross multiply
    13,526.90x = 20,290.35 × 5,210.83
  4. Step 4: Simplify right side
    13,526.90x = 105,729,580.08
  5. Step 5: Solve for x
    x = 105,729,580.08/13,526.90
  6. Step 6: Final answer
    x = 7,816.25

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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.