Home / 10,623.12-14,656.32-6,432.72

Finding the Fourth Proportional to 10,623.12, 14,656.32 and 6,432.72

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Solution

The fourth proportional to 10,623.12, 14,656.32 and 6,432.72 is: 8,874.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,623.12 : 14,656.32 = 6,432.72 : x
  2. Step 2: Convert to fraction form
    10,623.12/14,656.32 = 6,432.72/x
  3. Step 3: Cross multiply
    10,623.12x = 14,656.32 × 6,432.72
  4. Step 4: Simplify right side
    10,623.12x = 94,280,002.79
  5. Step 5: Solve for x
    x = 94,280,002.79/10,623.12
  6. Step 6: Final answer
    x = 8,874.98

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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.