Home / 10,448.12-15,664.62-6,291.20

Finding the Fourth Proportional to 10,448.12, 15,664.62 and 6,291.20

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Solution

The fourth proportional to 10,448.12, 15,664.62 and 6,291.20 is: 9,432.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,448.12 : 15,664.62 = 6,291.20 : x
  2. Step 2: Convert to fraction form
    10,448.12/15,664.62 = 6,291.20/x
  3. Step 3: Cross multiply
    10,448.12x = 15,664.62 × 6,291.20
  4. Step 4: Simplify right side
    10,448.12x = 98,549,257.34
  5. Step 5: Solve for x
    x = 98,549,257.34/10,448.12
  6. Step 6: Final answer
    x = 9,432.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.