Home / 10,412.10-15,632.55-8,223.30

Finding the Fourth Proportional to 10,412.10, 15,632.55 and 8,223.30

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Solution

The fourth proportional to 10,412.10, 15,632.55 and 8,223.30 is: 12,346.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,412.10 : 15,632.55 = 8,223.30 : x
  2. Step 2: Convert to fraction form
    10,412.10/15,632.55 = 8,223.30/x
  3. Step 3: Cross multiply
    10,412.10x = 15,632.55 × 8,223.30
  4. Step 4: Simplify right side
    10,412.10x = 128,551,148.42
  5. Step 5: Solve for x
    x = 128,551,148.42/10,412.10
  6. Step 6: Final answer
    x = 12,346.32

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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.