Home / 15,075.08-20,803.32-8,269.13

Finding the Fourth Proportional to 15,075.08, 20,803.32 and 8,269.13

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Solution

The fourth proportional to 15,075.08, 20,803.32 and 8,269.13 is: 11,411.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,075.08 : 20,803.32 = 8,269.13 : x
  2. Step 2: Convert to fraction form
    15,075.08/20,803.32 = 8,269.13/x
  3. Step 3: Cross multiply
    15,075.08x = 20,803.32 × 8,269.13
  4. Step 4: Simplify right side
    15,075.08x = 172,025,253.50
  5. Step 5: Solve for x
    x = 172,025,253.50/15,075.08
  6. Step 6: Final answer
    x = 11,411.24

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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.