Home / 19,618.60-29,402.30-9,087.40

Finding the Fourth Proportional to 19,618.60, 29,402.30 and 9,087.40

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Solution

The fourth proportional to 19,618.60, 29,402.30 and 9,087.40 is: 13,619.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,618.60 : 29,402.30 = 9,087.40 : x
  2. Step 2: Convert to fraction form
    19,618.60/29,402.30 = 9,087.40/x
  3. Step 3: Cross multiply
    19,618.60x = 29,402.30 × 9,087.40
  4. Step 4: Simplify right side
    19,618.60x = 267,190,461.02
  5. Step 5: Solve for x
    x = 267,190,461.02/19,618.60
  6. Step 6: Final answer
    x = 13,619.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.