Home / 15,603.40-23,403.90-7,280.92

Finding the Fourth Proportional to 15,603.40, 23,403.90 and 7,280.92

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Solution

The fourth proportional to 15,603.40, 23,403.90 and 7,280.92 is: 10,920.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,603.40 : 23,403.90 = 7,280.92 : x
  2. Step 2: Convert to fraction form
    15,603.40/23,403.90 = 7,280.92/x
  3. Step 3: Cross multiply
    15,603.40x = 23,403.90 × 7,280.92
  4. Step 4: Simplify right side
    15,603.40x = 170,401,923.59
  5. Step 5: Solve for x
    x = 170,401,923.59/15,603.40
  6. Step 6: Final answer
    x = 10,920.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.