Home / 11,269.81-15,547.10-7,292.20

Finding the Fourth Proportional to 11,269.81, 15,547.10 and 7,292.20

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Solution

The fourth proportional to 11,269.81, 15,547.10 and 7,292.20 is: 10,059.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,269.81 : 15,547.10 = 7,292.20 : x
  2. Step 2: Convert to fraction form
    11,269.81/15,547.10 = 7,292.20/x
  3. Step 3: Cross multiply
    11,269.81x = 15,547.10 × 7,292.20
  4. Step 4: Simplify right side
    11,269.81x = 113,372,559.27
  5. Step 5: Solve for x
    x = 113,372,559.27/11,269.81
  6. Step 6: Final answer
    x = 10,059.85

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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.