Home / 12,547.69-18,818.38-5,154.19

Finding the Fourth Proportional to 12,547.69, 18,818.38 and 5,154.19

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Solution

The fourth proportional to 12,547.69, 18,818.38 and 5,154.19 is: 7,729.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,547.69 : 18,818.38 = 5,154.19 : x
  2. Step 2: Convert to fraction form
    12,547.69/18,818.38 = 5,154.19/x
  3. Step 3: Cross multiply
    12,547.69x = 18,818.38 × 5,154.19
  4. Step 4: Simplify right side
    12,547.69x = 96,993,506.01
  5. Step 5: Solve for x
    x = 96,993,506.01/12,547.69
  6. Step 6: Final answer
    x = 7,729.99

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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.