Home / 13,159.84-18,159.33-7,191.13

Finding the Fourth Proportional to 13,159.84, 18,159.33 and 7,191.13

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Solution

The fourth proportional to 13,159.84, 18,159.33 and 7,191.13 is: 9,923.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,159.84 : 18,159.33 = 7,191.13 : x
  2. Step 2: Convert to fraction form
    13,159.84/18,159.33 = 7,191.13/x
  3. Step 3: Cross multiply
    13,159.84x = 18,159.33 × 7,191.13
  4. Step 4: Simplify right side
    13,159.84x = 130,586,102.74
  5. Step 5: Solve for x
    x = 130,586,102.74/13,159.84
  6. Step 6: Final answer
    x = 9,923.08

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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.