Home / 10,306.80-15,460.20-7,026.30

Finding the Fourth Proportional to 10,306.80, 15,460.20 and 7,026.30

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Solution

The fourth proportional to 10,306.80, 15,460.20 and 7,026.30 is: 10,539.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,306.80 : 15,460.20 = 7,026.30 : x
  2. Step 2: Convert to fraction form
    10,306.80/15,460.20 = 7,026.30/x
  3. Step 3: Cross multiply
    10,306.80x = 15,460.20 × 7,026.30
  4. Step 4: Simplify right side
    10,306.80x = 108,628,003.26
  5. Step 5: Solve for x
    x = 108,628,003.26/10,306.80
  6. Step 6: Final answer
    x = 10,539.45

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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.