Home / 15,866.20-21,895.62-9,582.20

Finding the Fourth Proportional to 15,866.20, 21,895.62 and 9,582.20

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Solution

The fourth proportional to 15,866.20, 21,895.62 and 9,582.20 is: 13,223.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,866.20 : 21,895.62 = 9,582.20 : x
  2. Step 2: Convert to fraction form
    15,866.20/21,895.62 = 9,582.20/x
  3. Step 3: Cross multiply
    15,866.20x = 21,895.62 × 9,582.20
  4. Step 4: Simplify right side
    15,866.20x = 209,808,209.96
  5. Step 5: Solve for x
    x = 209,808,209.96/15,866.20
  6. Step 6: Final answer
    x = 13,223.60

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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.