Home / 15,436.79-21,303.75-9,467.65

Finding the Fourth Proportional to 15,436.79, 21,303.75 and 9,467.65

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Solution

The fourth proportional to 15,436.79, 21,303.75 and 9,467.65 is: 13,065.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,436.79 : 21,303.75 = 9,467.65 : x
  2. Step 2: Convert to fraction form
    15,436.79/21,303.75 = 9,467.65/x
  3. Step 3: Cross multiply
    15,436.79x = 21,303.75 × 9,467.65
  4. Step 4: Simplify right side
    15,436.79x = 201,696,342.17
  5. Step 5: Solve for x
    x = 201,696,342.17/15,436.79
  6. Step 6: Final answer
    x = 13,065.95

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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.