Home / 12,913.08-19,358.28-8,521.26

Finding the Fourth Proportional to 12,913.08, 19,358.28 and 8,521.26

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Solution

The fourth proportional to 12,913.08, 19,358.28 and 8,521.26 is: 12,774.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,913.08 : 19,358.28 = 8,521.26 : x
  2. Step 2: Convert to fraction form
    12,913.08/19,358.28 = 8,521.26/x
  3. Step 3: Cross multiply
    12,913.08x = 19,358.28 × 8,521.26
  4. Step 4: Simplify right side
    12,913.08x = 164,956,937.03
  5. Step 5: Solve for x
    x = 164,956,937.03/12,913.08
  6. Step 6: Final answer
    x = 12,774.41

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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.