Home / 7,346.81-10,139.91-5,354.89

Finding the Fourth Proportional to 7,346.81, 10,139.91 and 5,354.89

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Solution

The fourth proportional to 7,346.81, 10,139.91 and 5,354.89 is: 7,390.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,346.81 : 10,139.91 = 5,354.89 : x
  2. Step 2: Convert to fraction form
    7,346.81/10,139.91 = 5,354.89/x
  3. Step 3: Cross multiply
    7,346.81x = 10,139.91 × 5,354.89
  4. Step 4: Simplify right side
    7,346.81x = 54,298,102.66
  5. Step 5: Solve for x
    x = 54,298,102.66/7,346.81
  6. Step 6: Final answer
    x = 7,390.70

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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.