Home / 10,489.12-14,460.60-7,650.88

Finding the Fourth Proportional to 10,489.12, 14,460.60 and 7,650.88

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Solution

The fourth proportional to 10,489.12, 14,460.60 and 7,650.88 is: 10,547.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,489.12 : 14,460.60 = 7,650.88 : x
  2. Step 2: Convert to fraction form
    10,489.12/14,460.60 = 7,650.88/x
  3. Step 3: Cross multiply
    10,489.12x = 14,460.60 × 7,650.88
  4. Step 4: Simplify right side
    10,489.12x = 110,636,315.33
  5. Step 5: Solve for x
    x = 110,636,315.33/10,489.12
  6. Step 6: Final answer
    x = 10,547.72

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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.