Home / 15,532.84-21,434.65-8,459.29

Finding the Fourth Proportional to 15,532.84, 21,434.65 and 8,459.29

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Solution

The fourth proportional to 15,532.84, 21,434.65 and 8,459.29 is: 11,673.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,532.84 : 21,434.65 = 8,459.29 : x
  2. Step 2: Convert to fraction form
    15,532.84/21,434.65 = 8,459.29/x
  3. Step 3: Cross multiply
    15,532.84x = 21,434.65 × 8,459.29
  4. Step 4: Simplify right side
    15,532.84x = 181,321,920.40
  5. Step 5: Solve for x
    x = 181,321,920.40/15,532.84
  6. Step 6: Final answer
    x = 11,673.46

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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.