Home / 10,718.91-14,782.23-7,355.79

Finding the Fourth Proportional to 10,718.91, 14,782.23 and 7,355.79

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Solution

The fourth proportional to 10,718.91, 14,782.23 and 7,355.79 is: 10,144.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,718.91 : 14,782.23 = 7,355.79 : x
  2. Step 2: Convert to fraction form
    10,718.91/14,782.23 = 7,355.79/x
  3. Step 3: Cross multiply
    10,718.91x = 14,782.23 × 7,355.79
  4. Step 4: Simplify right side
    10,718.91x = 108,734,979.61
  5. Step 5: Solve for x
    x = 108,734,979.61/10,718.91
  6. Step 6: Final answer
    x = 10,144.22

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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.