Home / 18,509.77-25,547.60-12,775.27

Finding the Fourth Proportional to 18,509.77, 25,547.60 and 12,775.27

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Solution

The fourth proportional to 18,509.77, 25,547.60 and 12,775.27 is: 17,632.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,509.77 : 25,547.60 = 12,775.27 : x
  2. Step 2: Convert to fraction form
    18,509.77/25,547.60 = 12,775.27/x
  3. Step 3: Cross multiply
    18,509.77x = 25,547.60 × 12,775.27
  4. Step 4: Simplify right side
    18,509.77x = 326,377,503.82
  5. Step 5: Solve for x
    x = 326,377,503.82/18,509.77
  6. Step 6: Final answer
    x = 17,632.72

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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.