Home / 13,376,032.07-18,459,378.63-12,763,120.76

Finding the Fourth Proportional to 13,376,032.07, 18,459,378.63 and 12,763,120.76

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Solution

The fourth proportional to 13,376,032.07, 18,459,378.63 and 12,763,120.76 is: 17,613,540.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,376,032.07 : 18,459,378.63 = 12,763,120.76 : x
  2. Step 2: Convert to fraction form
    13,376,032.07/18,459,378.63 = 12,763,120.76/x
  3. Step 3: Cross multiply
    13,376,032.07x = 18,459,378.63 × 12,763,120.76
  4. Step 4: Simplify right side
    13,376,032.07x = 235,599,278,655,401.78
  5. Step 5: Solve for x
    x = 235,599,278,655,401.78/13,376,032.07
  6. Step 6: Final answer
    x = 17,613,540.20

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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.