Home / 9,403.32-12,981.42-6,621.24

Finding the Fourth Proportional to 9,403.32, 12,981.42 and 6,621.24

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Solution

The fourth proportional to 9,403.32, 12,981.42 and 6,621.24 is: 9,140.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,403.32 : 12,981.42 = 6,621.24 : x
  2. Step 2: Convert to fraction form
    9,403.32/12,981.42 = 6,621.24/x
  3. Step 3: Cross multiply
    9,403.32x = 12,981.42 × 6,621.24
  4. Step 4: Simplify right side
    9,403.32x = 85,953,097.36
  5. Step 5: Solve for x
    x = 85,953,097.36/9,403.32
  6. Step 6: Final answer
    x = 9,140.72

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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.