Home / 19,619.60-29,403.80-9,088.40

Finding the Fourth Proportional to 19,619.60, 29,403.80 and 9,088.40

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Solution

The fourth proportional to 19,619.60, 29,403.80 and 9,088.40 is: 13,620.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,619.60 : 29,403.80 = 9,088.40 : x
  2. Step 2: Convert to fraction form
    19,619.60/29,403.80 = 9,088.40/x
  3. Step 3: Cross multiply
    19,619.60x = 29,403.80 × 9,088.40
  4. Step 4: Simplify right side
    19,619.60x = 267,233,495.92
  5. Step 5: Solve for x
    x = 267,233,495.92/19,619.60
  6. Step 6: Final answer
    x = 13,620.74

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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.