Home / 10,319.54-14,240.94-5,603.78

Finding the Fourth Proportional to 10,319.54, 14,240.94 and 5,603.78

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Solution

The fourth proportional to 10,319.54, 14,240.94 and 5,603.78 is: 7,733.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,319.54 : 14,240.94 = 5,603.78 : x
  2. Step 2: Convert to fraction form
    10,319.54/14,240.94 = 5,603.78/x
  3. Step 3: Cross multiply
    10,319.54x = 14,240.94 × 5,603.78
  4. Step 4: Simplify right side
    10,319.54x = 79,803,094.75
  5. Step 5: Solve for x
    x = 79,803,094.75/10,319.54
  6. Step 6: Final answer
    x = 7,733.20

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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.