Home / 7,505.12-10,347.36-5,143.04

Finding the Fourth Proportional to 7,505.12, 10,347.36 and 5,143.04

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Solution

The fourth proportional to 7,505.12, 10,347.36 and 5,143.04 is: 7,090.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,505.12 : 10,347.36 = 5,143.04 : x
  2. Step 2: Convert to fraction form
    7,505.12/10,347.36 = 5,143.04/x
  3. Step 3: Cross multiply
    7,505.12x = 10,347.36 × 5,143.04
  4. Step 4: Simplify right side
    7,505.12x = 53,216,886.37
  5. Step 5: Solve for x
    x = 53,216,886.37/7,505.12
  6. Step 6: Final answer
    x = 7,090.74

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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.