Home / 7,145.61-10,699.79-5,751.33

Finding the Fourth Proportional to 7,145.61, 10,699.79 and 5,751.33

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Solution

The fourth proportional to 7,145.61, 10,699.79 and 5,751.33 is: 8,612.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,145.61 : 10,699.79 = 5,751.33 : x
  2. Step 2: Convert to fraction form
    7,145.61/10,699.79 = 5,751.33/x
  3. Step 3: Cross multiply
    7,145.61x = 10,699.79 × 5,751.33
  4. Step 4: Simplify right side
    7,145.61x = 61,537,994.46
  5. Step 5: Solve for x
    x = 61,537,994.46/7,145.61
  6. Step 6: Final answer
    x = 8,612.00

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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.