Home / 12,051.33-18,082.47-7,130.58

Finding the Fourth Proportional to 12,051.33, 18,082.47 and 7,130.58

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Solution

The fourth proportional to 12,051.33, 18,082.47 and 7,130.58 is: 10,699.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,051.33 : 18,082.47 = 7,130.58 : x
  2. Step 2: Convert to fraction form
    12,051.33/18,082.47 = 7,130.58/x
  3. Step 3: Cross multiply
    12,051.33x = 18,082.47 × 7,130.58
  4. Step 4: Simplify right side
    12,051.33x = 128,938,498.93
  5. Step 5: Solve for x
    x = 128,938,498.93/12,051.33
  6. Step 6: Final answer
    x = 10,699.11

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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.