Home / 9,223.72-12,731.46-6,430.12

Finding the Fourth Proportional to 9,223.72, 12,731.46 and 6,430.12

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Solution

The fourth proportional to 9,223.72, 12,731.46 and 6,430.12 is: 8,875.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,223.72 : 12,731.46 = 6,430.12 : x
  2. Step 2: Convert to fraction form
    9,223.72/12,731.46 = 6,430.12/x
  3. Step 3: Cross multiply
    9,223.72x = 12,731.46 × 6,430.12
  4. Step 4: Simplify right side
    9,223.72x = 81,864,815.58
  5. Step 5: Solve for x
    x = 81,864,815.58/9,223.72
  6. Step 6: Final answer
    x = 8,875.47

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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.