Home / 9,051.40-12,491.18-5,072.28

Finding the Fourth Proportional to 9,051.40, 12,491.18 and 5,072.28

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Solution

The fourth proportional to 9,051.40, 12,491.18 and 5,072.28 is: 6,999.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,051.40 : 12,491.18 = 5,072.28 : x
  2. Step 2: Convert to fraction form
    9,051.40/12,491.18 = 5,072.28/x
  3. Step 3: Cross multiply
    9,051.40x = 12,491.18 × 5,072.28
  4. Step 4: Simplify right side
    9,051.40x = 63,358,762.49
  5. Step 5: Solve for x
    x = 63,358,762.49/9,051.40
  6. Step 6: Final answer
    x = 6,999.89

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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.