Home / 11,280.81-15,562.29-7,303.20

Finding the Fourth Proportional to 11,280.81, 15,562.29 and 7,303.20

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Solution

The fourth proportional to 11,280.81, 15,562.29 and 7,303.20 is: 10,075.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,280.81 : 15,562.29 = 7,303.20 : x
  2. Step 2: Convert to fraction form
    11,280.81/15,562.29 = 7,303.20/x
  3. Step 3: Cross multiply
    11,280.81x = 15,562.29 × 7,303.20
  4. Step 4: Simplify right side
    11,280.81x = 113,654,516.33
  5. Step 5: Solve for x
    x = 113,654,516.33/11,280.81
  6. Step 6: Final answer
    x = 10,075.03

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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.