Home / 15,597.40-21,518.30-9,618.69

Finding the Fourth Proportional to 15,597.40, 21,518.30 and 9,618.69

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Solution

The fourth proportional to 15,597.40, 21,518.30 and 9,618.69 is: 13,270.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,597.40 : 21,518.30 = 9,618.69 : x
  2. Step 2: Convert to fraction form
    15,597.40/21,518.30 = 9,618.69/x
  3. Step 3: Cross multiply
    15,597.40x = 21,518.30 × 9,618.69
  4. Step 4: Simplify right side
    15,597.40x = 206,977,701.34
  5. Step 5: Solve for x
    x = 206,977,701.34/15,597.40
  6. Step 6: Final answer
    x = 13,270.02

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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.