Home / 9,348.12-12,900.96-5,156.36

Finding the Fourth Proportional to 9,348.12, 12,900.96 and 5,156.36

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Solution

The fourth proportional to 9,348.12, 12,900.96 and 5,156.36 is: 7,116.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,348.12 : 12,900.96 = 5,156.36 : x
  2. Step 2: Convert to fraction form
    9,348.12/12,900.96 = 5,156.36/x
  3. Step 3: Cross multiply
    9,348.12x = 12,900.96 × 5,156.36
  4. Step 4: Simplify right side
    9,348.12x = 66,521,994.11
  5. Step 5: Solve for x
    x = 66,521,994.11/9,348.12
  6. Step 6: Final answer
    x = 7,116.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.