Home / 10,390.29-14,342.57-7,050.39

Finding the Fourth Proportional to 10,390.29, 14,342.57 and 7,050.39

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Solution

The fourth proportional to 10,390.29, 14,342.57 and 7,050.39 is: 9,732.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,390.29 : 14,342.57 = 7,050.39 : x
  2. Step 2: Convert to fraction form
    10,390.29/14,342.57 = 7,050.39/x
  3. Step 3: Cross multiply
    10,390.29x = 14,342.57 × 7,050.39
  4. Step 4: Simplify right side
    10,390.29x = 101,120,712.10
  5. Step 5: Solve for x
    x = 101,120,712.10/10,390.29
  6. Step 6: Final answer
    x = 9,732.23

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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.