Home / 10,550.40-14,527.28-9,216.32

Finding the Fourth Proportional to 10,550.40, 14,527.28 and 9,216.32

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Solution

The fourth proportional to 10,550.40, 14,527.28 and 9,216.32 is: 12,690.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,550.40 : 14,527.28 = 9,216.32 : x
  2. Step 2: Convert to fraction form
    10,550.40/14,527.28 = 9,216.32/x
  3. Step 3: Cross multiply
    10,550.40x = 14,527.28 × 9,216.32
  4. Step 4: Simplify right side
    10,550.40x = 133,888,061.21
  5. Step 5: Solve for x
    x = 133,888,061.21/10,550.40
  6. Step 6: Final answer
    x = 12,690.33

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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.