Home / 7,787.11-10,741.40-5,549.70

Finding the Fourth Proportional to 7,787.11, 10,741.40 and 5,549.70

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Solution

The fourth proportional to 7,787.11, 10,741.40 and 5,549.70 is: 7,655.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,787.11 : 10,741.40 = 5,549.70 : x
  2. Step 2: Convert to fraction form
    7,787.11/10,741.40 = 5,549.70/x
  3. Step 3: Cross multiply
    7,787.11x = 10,741.40 × 5,549.70
  4. Step 4: Simplify right side
    7,787.11x = 59,611,547.58
  5. Step 5: Solve for x
    x = 59,611,547.58/7,787.11
  6. Step 6: Final answer
    x = 7,655.16

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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.