Home / 10,358.92-15,438.43-10,342.45

Finding the Fourth Proportional to 10,358.92, 15,438.43 and 10,342.45

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Solution

The fourth proportional to 10,358.92, 15,438.43 and 10,342.45 is: 15,413.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,358.92 : 15,438.43 = 10,342.45 : x
  2. Step 2: Convert to fraction form
    10,358.92/15,438.43 = 10,342.45/x
  3. Step 3: Cross multiply
    10,358.92x = 15,438.43 × 10,342.45
  4. Step 4: Simplify right side
    10,358.92x = 159,671,190.35
  5. Step 5: Solve for x
    x = 159,671,190.35/10,358.92
  6. Step 6: Final answer
    x = 15,413.88

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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.