Home / 12,911.16-19,373.28-9,630.84

Finding the Fourth Proportional to 12,911.16, 19,373.28 and 9,630.84

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Solution

The fourth proportional to 12,911.16, 19,373.28 and 9,630.84 is: 14,451.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,911.16 : 19,373.28 = 9,630.84 : x
  2. Step 2: Convert to fraction form
    12,911.16/19,373.28 = 9,630.84/x
  3. Step 3: Cross multiply
    12,911.16x = 19,373.28 × 9,630.84
  4. Step 4: Simplify right side
    12,911.16x = 186,580,959.96
  5. Step 5: Solve for x
    x = 186,580,959.96/12,911.16
  6. Step 6: Final answer
    x = 14,451.14

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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.