Home / 15,424.74-21,286.53-9,459.70

Finding the Fourth Proportional to 15,424.74, 21,286.53 and 9,459.70

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Solution

The fourth proportional to 15,424.74, 21,286.53 and 9,459.70 is: 13,054.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,424.74 : 21,286.53 = 9,459.70 : x
  2. Step 2: Convert to fraction form
    15,424.74/21,286.53 = 9,459.70/x
  3. Step 3: Cross multiply
    15,424.74x = 21,286.53 × 9,459.70
  4. Step 4: Simplify right side
    15,424.74x = 201,364,134.62
  5. Step 5: Solve for x
    x = 201,364,134.62/15,424.74
  6. Step 6: Final answer
    x = 13,054.62

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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.