Home / 10,319.40-14,240.65-5,603.72

Finding the Fourth Proportional to 10,319.40, 14,240.65 and 5,603.72

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Solution

The fourth proportional to 10,319.40, 14,240.65 and 5,603.72 is: 7,733.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,319.40 : 14,240.65 = 5,603.72 : x
  2. Step 2: Convert to fraction form
    10,319.40/14,240.65 = 5,603.72/x
  3. Step 3: Cross multiply
    10,319.40x = 14,240.65 × 5,603.72
  4. Step 4: Simplify right side
    10,319.40x = 79,800,579.62
  5. Step 5: Solve for x
    x = 79,800,579.62/10,319.40
  6. Step 6: Final answer
    x = 7,733.06

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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.