Home / 13,159.95-19,743.59-7,320.66

Finding the Fourth Proportional to 13,159.95, 19,743.59 and 7,320.66

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Solution

The fourth proportional to 13,159.95, 19,743.59 and 7,320.66 is: 10,983.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,159.95 : 19,743.59 = 7,320.66 : x
  2. Step 2: Convert to fraction form
    13,159.95/19,743.59 = 7,320.66/x
  3. Step 3: Cross multiply
    13,159.95x = 19,743.59 × 7,320.66
  4. Step 4: Simplify right side
    13,159.95x = 144,536,109.57
  5. Step 5: Solve for x
    x = 144,536,109.57/13,159.95
  6. Step 6: Final answer
    x = 10,983.03

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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.