Home / 7,429.48-11,088.40-6,424.38

Finding the Fourth Proportional to 7,429.48, 11,088.40 and 6,424.38

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Solution

The fourth proportional to 7,429.48, 11,088.40 and 6,424.38 is: 9,588.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,429.48 : 11,088.40 = 6,424.38 : x
  2. Step 2: Convert to fraction form
    7,429.48/11,088.40 = 6,424.38/x
  3. Step 3: Cross multiply
    7,429.48x = 11,088.40 × 6,424.38
  4. Step 4: Simplify right side
    7,429.48x = 71,236,109.25
  5. Step 5: Solve for x
    x = 71,236,109.25/7,429.48
  6. Step 6: Final answer
    x = 9,588.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.