Home / 12,547.48-18,822.84-4,223.92

Finding the Fourth Proportional to 12,547.48, 18,822.84 and 4,223.92

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Solution

The fourth proportional to 12,547.48, 18,822.84 and 4,223.92 is: 6,336.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,547.48 : 18,822.84 = 4,223.92 : x
  2. Step 2: Convert to fraction form
    12,547.48/18,822.84 = 4,223.92/x
  3. Step 3: Cross multiply
    12,547.48x = 18,822.84 × 4,223.92
  4. Step 4: Simplify right side
    12,547.48x = 79,506,170.33
  5. Step 5: Solve for x
    x = 79,506,170.33/12,547.48
  6. Step 6: Final answer
    x = 6,336.43

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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.