Home / 12,878.02-19,317.03-7,031.44

Finding the Fourth Proportional to 12,878.02, 19,317.03 and 7,031.44

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Solution

The fourth proportional to 12,878.02, 19,317.03 and 7,031.44 is: 10,547.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,878.02 : 19,317.03 = 7,031.44 : x
  2. Step 2: Convert to fraction form
    12,878.02/19,317.03 = 7,031.44/x
  3. Step 3: Cross multiply
    12,878.02x = 19,317.03 × 7,031.44
  4. Step 4: Simplify right side
    12,878.02x = 135,826,612.08
  5. Step 5: Solve for x
    x = 135,826,612.08/12,878.02
  6. Step 6: Final answer
    x = 10,547.16

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Similar ratio
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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.