Home / 12,901.59-17,803.15-7,159.23

Finding the Fourth Proportional to 12,901.59, 17,803.15 and 7,159.23

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Solution

The fourth proportional to 12,901.59, 17,803.15 and 7,159.23 is: 9,879.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,901.59 : 17,803.15 = 7,159.23 : x
  2. Step 2: Convert to fraction form
    12,901.59/17,803.15 = 7,159.23/x
  3. Step 3: Cross multiply
    12,901.59x = 17,803.15 × 7,159.23
  4. Step 4: Simplify right side
    12,901.59x = 127,456,827.68
  5. Step 5: Solve for x
    x = 127,456,827.68/12,901.59
  6. Step 6: Final answer
    x = 9,879.16

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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.