Home / 10,811.53-14,922.30-7,028.11

Finding the Fourth Proportional to 10,811.53, 14,922.30 and 7,028.11

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Solution

The fourth proportional to 10,811.53, 14,922.30 and 7,028.11 is: 9,700.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,811.53 : 14,922.30 = 7,028.11 : x
  2. Step 2: Convert to fraction form
    10,811.53/14,922.30 = 7,028.11/x
  3. Step 3: Cross multiply
    10,811.53x = 14,922.30 × 7,028.11
  4. Step 4: Simplify right side
    10,811.53x = 104,875,530.71
  5. Step 5: Solve for x
    x = 104,875,530.71/10,811.53
  6. Step 6: Final answer
    x = 9,700.35

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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.