Home / 12,047.16-18,071.28-5,292.30

Finding the Fourth Proportional to 12,047.16, 18,071.28 and 5,292.30

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Solution

The fourth proportional to 12,047.16, 18,071.28 and 5,292.30 is: 7,938.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,047.16 : 18,071.28 = 5,292.30 : x
  2. Step 2: Convert to fraction form
    12,047.16/18,071.28 = 5,292.30/x
  3. Step 3: Cross multiply
    12,047.16x = 18,071.28 × 5,292.30
  4. Step 4: Simplify right side
    12,047.16x = 95,638,635.14
  5. Step 5: Solve for x
    x = 95,638,635.14/12,047.16
  6. Step 6: Final answer
    x = 7,938.69

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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.