Home / 10,603.99-14,637.44-9,105.89

Finding the Fourth Proportional to 10,603.99, 14,637.44 and 9,105.89

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Solution

The fourth proportional to 10,603.99, 14,637.44 and 9,105.89 is: 12,569.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,603.99 : 14,637.44 = 9,105.89 : x
  2. Step 2: Convert to fraction form
    10,603.99/14,637.44 = 9,105.89/x
  3. Step 3: Cross multiply
    10,603.99x = 14,637.44 × 9,105.89
  4. Step 4: Simplify right side
    10,603.99x = 133,286,918.52
  5. Step 5: Solve for x
    x = 133,286,918.52/10,603.99
  6. Step 6: Final answer
    x = 12,569.51

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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.