Home / 18,512.88-25,547.34-11,345.60

Finding the Fourth Proportional to 18,512.88, 25,547.34 and 11,345.60

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Solution

The fourth proportional to 18,512.88, 25,547.34 and 11,345.60 is: 15,656.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,512.88 : 25,547.34 = 11,345.60 : x
  2. Step 2: Convert to fraction form
    18,512.88/25,547.34 = 11,345.60/x
  3. Step 3: Cross multiply
    18,512.88x = 25,547.34 × 11,345.60
  4. Step 4: Simplify right side
    18,512.88x = 289,849,900.70
  5. Step 5: Solve for x
    x = 289,849,900.70/18,512.88
  6. Step 6: Final answer
    x = 15,656.66

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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.