Home / 15,281.75-21,088.49-8,567.93

Finding the Fourth Proportional to 15,281.75, 21,088.49 and 8,567.93

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Solution

The fourth proportional to 15,281.75, 21,088.49 and 8,567.93 is: 11,823.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,281.75 : 21,088.49 = 8,567.93 : x
  2. Step 2: Convert to fraction form
    15,281.75/21,088.49 = 8,567.93/x
  3. Step 3: Cross multiply
    15,281.75x = 21,088.49 × 8,567.93
  4. Step 4: Simplify right side
    15,281.75x = 180,684,557.84
  5. Step 5: Solve for x
    x = 180,684,557.84/15,281.75
  6. Step 6: Final answer
    x = 11,823.56

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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.