Home / 14,911.84-20,581.32-11,368.72

Finding the Fourth Proportional to 14,911.84, 20,581.32 and 11,368.72

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Solution

The fourth proportional to 14,911.84, 20,581.32 and 11,368.72 is: 15,691.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,911.84 : 20,581.32 = 11,368.72 : x
  2. Step 2: Convert to fraction form
    14,911.84/20,581.32 = 11,368.72/x
  3. Step 3: Cross multiply
    14,911.84x = 20,581.32 × 11,368.72
  4. Step 4: Simplify right side
    14,911.84x = 233,983,264.31
  5. Step 5: Solve for x
    x = 233,983,264.31/14,911.84
  6. Step 6: Final answer
    x = 15,691.11

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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.