Home / 18,750.36-25,875.77-12,702.45

Finding the Fourth Proportional to 18,750.36, 25,875.77 and 12,702.45

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Solution

The fourth proportional to 18,750.36, 25,875.77 and 12,702.45 is: 17,529.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,750.36 : 25,875.77 = 12,702.45 : x
  2. Step 2: Convert to fraction form
    18,750.36/25,875.77 = 12,702.45/x
  3. Step 3: Cross multiply
    18,750.36x = 25,875.77 × 12,702.45
  4. Step 4: Simplify right side
    18,750.36x = 328,685,674.64
  5. Step 5: Solve for x
    x = 328,685,674.64/18,750.36
  6. Step 6: Final answer
    x = 17,529.57

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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.