Home / 15,332.34-21,159.39-9,363.05

Finding the Fourth Proportional to 15,332.34, 21,159.39 and 9,363.05

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Solution

The fourth proportional to 15,332.34, 21,159.39 and 9,363.05 is: 12,921.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,332.34 : 21,159.39 = 9,363.05 : x
  2. Step 2: Convert to fraction form
    15,332.34/21,159.39 = 9,363.05/x
  3. Step 3: Cross multiply
    15,332.34x = 21,159.39 × 9,363.05
  4. Step 4: Simplify right side
    15,332.34x = 198,116,426.54
  5. Step 5: Solve for x
    x = 198,116,426.54/15,332.34
  6. Step 6: Final answer
    x = 12,921.47

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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.