Home / 12,934.80-19,386-5,528.16

Finding the Fourth Proportional to 12,934.80, 19,386 and 5,528.16

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Solution

The fourth proportional to 12,934.80, 19,386 and 5,528.16 is: 8,285.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,934.80 : 19,386 = 5,528.16 : x
  2. Step 2: Convert to fraction form
    12,934.80/19,386 = 5,528.16/x
  3. Step 3: Cross multiply
    12,934.80x = 19,386 × 5,528.16
  4. Step 4: Simplify right side
    12,934.80x = 107,168,909.76
  5. Step 5: Solve for x
    x = 107,168,909.76/12,934.80
  6. Step 6: Final answer
    x = 8,285.32

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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.