Home / 15,366.93-21,206.79-9,398.49

Finding the Fourth Proportional to 15,366.93, 21,206.79 and 9,398.49

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Solution

The fourth proportional to 15,366.93, 21,206.79 and 9,398.49 is: 12,970.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,366.93 : 21,206.79 = 9,398.49 : x
  2. Step 2: Convert to fraction form
    15,366.93/21,206.79 = 9,398.49/x
  3. Step 3: Cross multiply
    15,366.93x = 21,206.79 × 9,398.49
  4. Step 4: Simplify right side
    15,366.93x = 199,311,803.75
  5. Step 5: Solve for x
    x = 199,311,803.75/15,366.93
  6. Step 6: Final answer
    x = 12,970.18

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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.