Home / 7,688.32-11,529.28-5,347.36

Finding the Fourth Proportional to 7,688.32, 11,529.28 and 5,347.36

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Solution

The fourth proportional to 7,688.32, 11,529.28 and 5,347.36 is: 8,018.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,688.32 : 11,529.28 = 5,347.36 : x
  2. Step 2: Convert to fraction form
    7,688.32/11,529.28 = 5,347.36/x
  3. Step 3: Cross multiply
    7,688.32x = 11,529.28 × 5,347.36
  4. Step 4: Simplify right side
    7,688.32x = 61,651,210.70
  5. Step 5: Solve for x
    x = 61,651,210.70/7,688.32
  6. Step 6: Final answer
    x = 8,018.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.