Home / 11,423.32-15,762.58-6,386.92

Finding the Fourth Proportional to 11,423.32, 15,762.58 and 6,386.92

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Solution

The fourth proportional to 11,423.32, 15,762.58 and 6,386.92 is: 8,813.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,423.32 : 15,762.58 = 6,386.92 : x
  2. Step 2: Convert to fraction form
    11,423.32/15,762.58 = 6,386.92/x
  3. Step 3: Cross multiply
    11,423.32x = 15,762.58 × 6,386.92
  4. Step 4: Simplify right side
    11,423.32x = 100,674,337.45
  5. Step 5: Solve for x
    x = 100,674,337.45/11,423.32
  6. Step 6: Final answer
    x = 8,813.05

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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.