Home / 10,315.80-14,235.82-5,600.08

Finding the Fourth Proportional to 10,315.80, 14,235.82 and 5,600.08

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Solution

The fourth proportional to 10,315.80, 14,235.82 and 5,600.08 is: 7,728.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,315.80 : 14,235.82 = 5,600.08 : x
  2. Step 2: Convert to fraction form
    10,315.80/14,235.82 = 5,600.08/x
  3. Step 3: Cross multiply
    10,315.80x = 14,235.82 × 5,600.08
  4. Step 4: Simplify right side
    10,315.80x = 79,721,730.87
  5. Step 5: Solve for x
    x = 79,721,730.87/10,315.80
  6. Step 6: Final answer
    x = 7,728.12

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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.