Home / 10,643.68-14,690.88-6,397.24

Finding the Fourth Proportional to 10,643.68, 14,690.88 and 6,397.24

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Solution

The fourth proportional to 10,643.68, 14,690.88 and 6,397.24 is: 8,829.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,643.68 : 14,690.88 = 6,397.24 : x
  2. Step 2: Convert to fraction form
    10,643.68/14,690.88 = 6,397.24/x
  3. Step 3: Cross multiply
    10,643.68x = 14,690.88 × 6,397.24
  4. Step 4: Simplify right side
    10,643.68x = 93,981,085.17
  5. Step 5: Solve for x
    x = 93,981,085.17/10,643.68
  6. Step 6: Final answer
    x = 8,829.75

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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.