Home / 15,294.67-21,106.69-8,925.64

Finding the Fourth Proportional to 15,294.67, 21,106.69 and 8,925.64

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Solution

The fourth proportional to 15,294.67, 21,106.69 and 8,925.64 is: 12,317.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,294.67 : 21,106.69 = 8,925.64 : x
  2. Step 2: Convert to fraction form
    15,294.67/21,106.69 = 8,925.64/x
  3. Step 3: Cross multiply
    15,294.67x = 21,106.69 × 8,925.64
  4. Step 4: Simplify right side
    15,294.67x = 188,390,641.45
  5. Step 5: Solve for x
    x = 188,390,641.45/15,294.67
  6. Step 6: Final answer
    x = 12,317.41

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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.