Home / 15,570.80-23,331.18-9,315.80

Finding the Fourth Proportional to 15,570.80, 23,331.18 and 9,315.80

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Solution

The fourth proportional to 15,570.80, 23,331.18 and 9,315.80 is: 13,958.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,570.80 : 23,331.18 = 9,315.80 : x
  2. Step 2: Convert to fraction form
    15,570.80/23,331.18 = 9,315.80/x
  3. Step 3: Cross multiply
    15,570.80x = 23,331.18 × 9,315.80
  4. Step 4: Simplify right side
    15,570.80x = 217,348,606.64
  5. Step 5: Solve for x
    x = 217,348,606.64/15,570.80
  6. Step 6: Final answer
    x = 13,958.73

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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.