Home / 15,075.59-20,743.16-12,376.87

Finding the Fourth Proportional to 15,075.59, 20,743.16 and 12,376.87

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Solution

The fourth proportional to 15,075.59, 20,743.16 and 12,376.87 is: 17,029.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,075.59 : 20,743.16 = 12,376.87 : x
  2. Step 2: Convert to fraction form
    15,075.59/20,743.16 = 12,376.87/x
  3. Step 3: Cross multiply
    15,075.59x = 20,743.16 × 12,376.87
  4. Step 4: Simplify right side
    15,075.59x = 256,735,280.97
  5. Step 5: Solve for x
    x = 256,735,280.97/15,075.59
  6. Step 6: Final answer
    x = 17,029.87

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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.