Home / 14,715.48-20,290.87-13,782.36

Finding the Fourth Proportional to 14,715.48, 20,290.87 and 13,782.36

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Solution

The fourth proportional to 14,715.48, 20,290.87 and 13,782.36 is: 19,004.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,715.48 : 20,290.87 = 13,782.36 : x
  2. Step 2: Convert to fraction form
    14,715.48/20,290.87 = 13,782.36/x
  3. Step 3: Cross multiply
    14,715.48x = 20,290.87 × 13,782.36
  4. Step 4: Simplify right side
    14,715.48x = 279,656,075.05
  5. Step 5: Solve for x
    x = 279,656,075.05/14,715.48
  6. Step 6: Final answer
    x = 19,004.21

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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.