Home / 15,747.99-21,723.95-9,370.05

Finding the Fourth Proportional to 15,747.99, 21,723.95 and 9,370.05

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Solution

The fourth proportional to 15,747.99, 21,723.95 and 9,370.05 is: 12,925.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,747.99 : 21,723.95 = 9,370.05 : x
  2. Step 2: Convert to fraction form
    15,747.99/21,723.95 = 9,370.05/x
  3. Step 3: Cross multiply
    15,747.99x = 21,723.95 × 9,370.05
  4. Step 4: Simplify right side
    15,747.99x = 203,554,521.12
  5. Step 5: Solve for x
    x = 203,554,521.12/15,747.99
  6. Step 6: Final answer
    x = 12,925.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.