Home / 10,440.41-15,603.28-7,635.15

Finding the Fourth Proportional to 10,440.41, 15,603.28 and 7,635.15

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Solution

The fourth proportional to 10,440.41, 15,603.28 and 7,635.15 is: 11,410.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,440.41 : 15,603.28 = 7,635.15 : x
  2. Step 2: Convert to fraction form
    10,440.41/15,603.28 = 7,635.15/x
  3. Step 3: Cross multiply
    10,440.41x = 15,603.28 × 7,635.15
  4. Step 4: Simplify right side
    10,440.41x = 119,133,345.12
  5. Step 5: Solve for x
    x = 119,133,345.12/10,440.41
  6. Step 6: Final answer
    x = 11,410.80

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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.