Home / 19,611.60-29,411.08-6,460.84

Finding the Fourth Proportional to 19,611.60, 29,411.08 and 6,460.84

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Solution

The fourth proportional to 19,611.60, 29,411.08 and 6,460.84 is: 9,689.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,611.60 : 29,411.08 = 6,460.84 : x
  2. Step 2: Convert to fraction form
    19,611.60/29,411.08 = 6,460.84/x
  3. Step 3: Cross multiply
    19,611.60x = 29,411.08 × 6,460.84
  4. Step 4: Simplify right side
    19,611.60x = 190,020,282.11
  5. Step 5: Solve for x
    x = 190,020,282.11/19,611.60
  6. Step 6: Final answer
    x = 9,689.18

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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.