Home / 15,303.52-21,115.65-10,006.12

Finding the Fourth Proportional to 15,303.52, 21,115.65 and 10,006.12

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Solution

The fourth proportional to 15,303.52, 21,115.65 and 10,006.12 is: 13,806.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,303.52 : 21,115.65 = 10,006.12 : x
  2. Step 2: Convert to fraction form
    15,303.52/21,115.65 = 10,006.12/x
  3. Step 3: Cross multiply
    15,303.52x = 21,115.65 × 10,006.12
  4. Step 4: Simplify right side
    15,303.52x = 211,285,727.78
  5. Step 5: Solve for x
    x = 211,285,727.78/15,303.52
  6. Step 6: Final answer
    x = 13,806.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.