Home / 12,871.59-19,307.38-4,547.08

Finding the Fourth Proportional to 12,871.59, 19,307.38 and 4,547.08

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Solution

The fourth proportional to 12,871.59, 19,307.38 and 4,547.08 is: 6,820.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,871.59 : 19,307.38 = 4,547.08 : x
  2. Step 2: Convert to fraction form
    12,871.59/19,307.38 = 4,547.08/x
  3. Step 3: Cross multiply
    12,871.59x = 19,307.38 × 4,547.08
  4. Step 4: Simplify right side
    12,871.59x = 87,792,201.45
  5. Step 5: Solve for x
    x = 87,792,201.45/12,871.59
  6. Step 6: Final answer
    x = 6,820.62

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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.