Home / 12,547.23-18,829.77-5,158.41

Finding the Fourth Proportional to 12,547.23, 18,829.77 and 5,158.41

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Solution

The fourth proportional to 12,547.23, 18,829.77 and 5,158.41 is: 7,741.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,547.23 : 18,829.77 = 5,158.41 : x
  2. Step 2: Convert to fraction form
    12,547.23/18,829.77 = 5,158.41/x
  3. Step 3: Cross multiply
    12,547.23x = 18,829.77 × 5,158.41
  4. Step 4: Simplify right side
    12,547.23x = 97,131,673.87
  5. Step 5: Solve for x
    x = 97,131,673.87/12,547.23
  6. Step 6: Final answer
    x = 7,741.28

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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.