Home / 12,547.59-18,821.36-3,782.50

Finding the Fourth Proportional to 12,547.59, 18,821.36 and 3,782.50

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Solution

The fourth proportional to 12,547.59, 18,821.36 and 3,782.50 is: 5,673.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,547.59 : 18,821.36 = 3,782.50 : x
  2. Step 2: Convert to fraction form
    12,547.59/18,821.36 = 3,782.50/x
  3. Step 3: Cross multiply
    12,547.59x = 18,821.36 × 3,782.50
  4. Step 4: Simplify right side
    12,547.59x = 71,191,700.09
  5. Step 5: Solve for x
    x = 71,191,700.09/12,547.59
  6. Step 6: Final answer
    x = 5,673.74

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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.