Home / 15,684.66-21,654.90-10,386.60

Finding the Fourth Proportional to 15,684.66, 21,654.90 and 10,386.60

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Solution

The fourth proportional to 15,684.66, 21,654.90 and 10,386.60 is: 14,340.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,684.66 : 21,654.90 = 10,386.60 : x
  2. Step 2: Convert to fraction form
    15,684.66/21,654.90 = 10,386.60/x
  3. Step 3: Cross multiply
    15,684.66x = 21,654.90 × 10,386.60
  4. Step 4: Simplify right side
    15,684.66x = 224,920,784.34
  5. Step 5: Solve for x
    x = 224,920,784.34/15,684.66
  6. Step 6: Final answer
    x = 14,340.18

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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.