Home / 15,308.04-21,133.14-10,298.61

Finding the Fourth Proportional to 15,308.04, 21,133.14 and 10,298.61

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Solution

The fourth proportional to 15,308.04, 21,133.14 and 10,298.61 is: 14,217.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,308.04 : 21,133.14 = 10,298.61 : x
  2. Step 2: Convert to fraction form
    15,308.04/21,133.14 = 10,298.61/x
  3. Step 3: Cross multiply
    15,308.04x = 21,133.14 × 10,298.61
  4. Step 4: Simplify right side
    15,308.04x = 217,641,966.94
  5. Step 5: Solve for x
    x = 217,641,966.94/15,308.04
  6. Step 6: Final answer
    x = 14,217.49

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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.