Home / 10,234.12-15,271.35-9,130.90

Finding the Fourth Proportional to 10,234.12, 15,271.35 and 9,130.90

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Solution

The fourth proportional to 10,234.12, 15,271.35 and 9,130.90 is: 13,625.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,234.12 : 15,271.35 = 9,130.90 : x
  2. Step 2: Convert to fraction form
    10,234.12/15,271.35 = 9,130.90/x
  3. Step 3: Cross multiply
    10,234.12x = 15,271.35 × 9,130.90
  4. Step 4: Simplify right side
    10,234.12x = 139,441,169.72
  5. Step 5: Solve for x
    x = 139,441,169.72/10,234.12
  6. Step 6: Final answer
    x = 13,625.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.