Home / 13,675.64-20,515.75-6,280.74

Finding the Fourth Proportional to 13,675.64, 20,515.75 and 6,280.74

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Solution

The fourth proportional to 13,675.64, 20,515.75 and 6,280.74 is: 9,422.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,675.64 : 20,515.75 = 6,280.74 : x
  2. Step 2: Convert to fraction form
    13,675.64/20,515.75 = 6,280.74/x
  3. Step 3: Cross multiply
    13,675.64x = 20,515.75 × 6,280.74
  4. Step 4: Simplify right side
    13,675.64x = 128,854,075.95
  5. Step 5: Solve for x
    x = 128,854,075.95/13,675.64
  6. Step 6: Final answer
    x = 9,422.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.