Home / 10,319.50-14,240.98-5,603.78

Finding the Fourth Proportional to 10,319.50, 14,240.98 and 5,603.78

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Solution

The fourth proportional to 10,319.50, 14,240.98 and 5,603.78 is: 7,733.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,319.50 : 14,240.98 = 5,603.78 : x
  2. Step 2: Convert to fraction form
    10,319.50/14,240.98 = 5,603.78/x
  3. Step 3: Cross multiply
    10,319.50x = 14,240.98 × 5,603.78
  4. Step 4: Simplify right side
    10,319.50x = 79,803,361.51
  5. Step 5: Solve for x
    x = 79,803,361.51/10,319.50
  6. Step 6: Final answer
    x = 7,733.26

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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.