Home / 12,887.52-19,292.37-11,655.51

Finding the Fourth Proportional to 12,887.52, 19,292.37 and 11,655.51

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Solution

The fourth proportional to 12,887.52, 19,292.37 and 11,655.51 is: 17,448.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,887.52 : 19,292.37 = 11,655.51 : x
  2. Step 2: Convert to fraction form
    12,887.52/19,292.37 = 11,655.51/x
  3. Step 3: Cross multiply
    12,887.52x = 19,292.37 × 11,655.51
  4. Step 4: Simplify right side
    12,887.52x = 224,862,411.46
  5. Step 5: Solve for x
    x = 224,862,411.46/12,887.52
  6. Step 6: Final answer
    x = 17,448.07

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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.