Home / 13,159.19-18,159.95-7,191.23

Finding the Fourth Proportional to 13,159.19, 18,159.95 and 7,191.23

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Solution

The fourth proportional to 13,159.19, 18,159.95 and 7,191.23 is: 9,924.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,159.19 : 18,159.95 = 7,191.23 : x
  2. Step 2: Convert to fraction form
    13,159.19/18,159.95 = 7,191.23/x
  3. Step 3: Cross multiply
    13,159.19x = 18,159.95 × 7,191.23
  4. Step 4: Simplify right side
    13,159.19x = 130,592,366.12
  5. Step 5: Solve for x
    x = 130,592,366.12/13,159.19
  6. Step 6: Final answer
    x = 9,924.04

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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.