Home / 7,713.80-10,646.54-5,061.12

Finding the Fourth Proportional to 7,713.80, 10,646.54 and 5,061.12

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Solution

The fourth proportional to 7,713.80, 10,646.54 and 5,061.12 is: 6,985.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,713.80 : 10,646.54 = 5,061.12 : x
  2. Step 2: Convert to fraction form
    7,713.80/10,646.54 = 5,061.12/x
  3. Step 3: Cross multiply
    7,713.80x = 10,646.54 × 5,061.12
  4. Step 4: Simplify right side
    7,713.80x = 53,883,391.22
  5. Step 5: Solve for x
    x = 53,883,391.22/7,713.80
  6. Step 6: Final answer
    x = 6,985.33

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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.