Home / 9,225.12-13,840.08-2,985.12

Finding the Fourth Proportional to 9,225.12, 13,840.08 and 2,985.12

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Solution

The fourth proportional to 9,225.12, 13,840.08 and 2,985.12 is: 4,478.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,225.12 : 13,840.08 = 2,985.12 : x
  2. Step 2: Convert to fraction form
    9,225.12/13,840.08 = 2,985.12/x
  3. Step 3: Cross multiply
    9,225.12x = 13,840.08 × 2,985.12
  4. Step 4: Simplify right side
    9,225.12x = 41,314,299.61
  5. Step 5: Solve for x
    x = 41,314,299.61/9,225.12
  6. Step 6: Final answer
    x = 4,478.46

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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.