Home / 11,435.04-15,780.24-7,246.72

Finding the Fourth Proportional to 11,435.04, 15,780.24 and 7,246.72

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Solution

The fourth proportional to 11,435.04, 15,780.24 and 7,246.72 is: 10,000.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,435.04 : 15,780.24 = 7,246.72 : x
  2. Step 2: Convert to fraction form
    11,435.04/15,780.24 = 7,246.72/x
  3. Step 3: Cross multiply
    11,435.04x = 15,780.24 × 7,246.72
  4. Step 4: Simplify right side
    11,435.04x = 114,354,980.81
  5. Step 5: Solve for x
    x = 114,354,980.81/11,435.04
  6. Step 6: Final answer
    x = 10,000.40

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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.