Home / 9,875.80-13,626.70-5,626.76

Finding the Fourth Proportional to 9,875.80, 13,626.70 and 5,626.76

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Solution

The fourth proportional to 9,875.80, 13,626.70 and 5,626.76 is: 7,763.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,875.80 : 13,626.70 = 5,626.76 : x
  2. Step 2: Convert to fraction form
    9,875.80/13,626.70 = 5,626.76/x
  3. Step 3: Cross multiply
    9,875.80x = 13,626.70 × 5,626.76
  4. Step 4: Simplify right side
    9,875.80x = 76,674,190.49
  5. Step 5: Solve for x
    x = 76,674,190.49/9,875.80
  6. Step 6: Final answer
    x = 7,763.85

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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.