Home / 12,868.80-19,304.72-4,547.08

Finding the Fourth Proportional to 12,868.80, 19,304.72 and 4,547.08

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Solution

The fourth proportional to 12,868.80, 19,304.72 and 4,547.08 is: 6,821.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,868.80 : 19,304.72 = 4,547.08 : x
  2. Step 2: Convert to fraction form
    12,868.80/19,304.72 = 4,547.08/x
  3. Step 3: Cross multiply
    12,868.80x = 19,304.72 × 4,547.08
  4. Step 4: Simplify right side
    12,868.80x = 87,780,106.22
  5. Step 5: Solve for x
    x = 87,780,106.22/12,868.80
  6. Step 6: Final answer
    x = 6,821.16

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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.