Home / 19,642.51-27,075.20-13,267.10

Finding the Fourth Proportional to 19,642.51, 27,075.20 and 13,267.10

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Solution

The fourth proportional to 19,642.51, 27,075.20 and 13,267.10 is: 18,287.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,642.51 : 27,075.20 = 13,267.10 : x
  2. Step 2: Convert to fraction form
    19,642.51/27,075.20 = 13,267.10/x
  3. Step 3: Cross multiply
    19,642.51x = 27,075.20 × 13,267.10
  4. Step 4: Simplify right side
    19,642.51x = 359,209,387.27
  5. Step 5: Solve for x
    x = 359,209,387.27/19,642.51
  6. Step 6: Final answer
    x = 18,287.35

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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.