Home / 15,281.75-21,088.49-8,567.23

Finding the Fourth Proportional to 15,281.75, 21,088.49 and 8,567.23

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Solution

The fourth proportional to 15,281.75, 21,088.49 and 8,567.23 is: 11,822.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,281.75 : 21,088.49 = 8,567.23 : x
  2. Step 2: Convert to fraction form
    15,281.75/21,088.49 = 8,567.23/x
  3. Step 3: Cross multiply
    15,281.75x = 21,088.49 × 8,567.23
  4. Step 4: Simplify right side
    15,281.75x = 180,669,953.96
  5. Step 5: Solve for x
    x = 180,669,953.96/15,281.75
  6. Step 6: Final answer
    x = 11,822.60

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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.