Home / 10,643.72-14,689.64-6,108.08

Finding the Fourth Proportional to 10,643.72, 14,689.64 and 6,108.08

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Solution

The fourth proportional to 10,643.72, 14,689.64 and 6,108.08 is: 8,429.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,643.72 : 14,689.64 = 6,108.08 : x
  2. Step 2: Convert to fraction form
    10,643.72/14,689.64 = 6,108.08/x
  3. Step 3: Cross multiply
    10,643.72x = 14,689.64 × 6,108.08
  4. Step 4: Simplify right side
    10,643.72x = 89,725,496.29
  5. Step 5: Solve for x
    x = 89,725,496.29/10,643.72
  6. Step 6: Final answer
    x = 8,429.90

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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.