Home / 11,280.81-15,562.35-7,303.21

Finding the Fourth Proportional to 11,280.81, 15,562.35 and 7,303.21

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Solution

The fourth proportional to 11,280.81, 15,562.35 and 7,303.21 is: 10,075.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,280.81 : 15,562.35 = 7,303.21 : x
  2. Step 2: Convert to fraction form
    11,280.81/15,562.35 = 7,303.21/x
  3. Step 3: Cross multiply
    11,280.81x = 15,562.35 × 7,303.21
  4. Step 4: Simplify right side
    11,280.81x = 113,655,110.14
  5. Step 5: Solve for x
    x = 113,655,110.14/11,280.81
  6. Step 6: Final answer
    x = 10,075.08

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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.