Home / 11,312.99-15,611.40-6,277.17

Finding the Fourth Proportional to 11,312.99, 15,611.40 and 6,277.17

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Solution

The fourth proportional to 11,312.99, 15,611.40 and 6,277.17 is: 8,662.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,312.99 : 15,611.40 = 6,277.17 : x
  2. Step 2: Convert to fraction form
    11,312.99/15,611.40 = 6,277.17/x
  3. Step 3: Cross multiply
    11,312.99x = 15,611.40 × 6,277.17
  4. Step 4: Simplify right side
    11,312.99x = 97,995,411.74
  5. Step 5: Solve for x
    x = 97,995,411.74/11,312.99
  6. Step 6: Final answer
    x = 8,662.21

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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.