Home / 14,172.77-19,557.90-7,885.01

Finding the Fourth Proportional to 14,172.77, 19,557.90 and 7,885.01

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Solution

The fourth proportional to 14,172.77, 19,557.90 and 7,885.01 is: 10,881.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,172.77 : 19,557.90 = 7,885.01 : x
  2. Step 2: Convert to fraction form
    14,172.77/19,557.90 = 7,885.01/x
  3. Step 3: Cross multiply
    14,172.77x = 19,557.90 × 7,885.01
  4. Step 4: Simplify right side
    14,172.77x = 154,214,237.08
  5. Step 5: Solve for x
    x = 154,214,237.08/14,172.77
  6. Step 6: Final answer
    x = 10,881.02

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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.