Home / 12,325.74-17,009.64-7,020.60

Finding the Fourth Proportional to 12,325.74, 17,009.64 and 7,020.60

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Solution

The fourth proportional to 12,325.74, 17,009.64 and 7,020.60 is: 9,688.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,325.74 : 17,009.64 = 7,020.60 : x
  2. Step 2: Convert to fraction form
    12,325.74/17,009.64 = 7,020.60/x
  3. Step 3: Cross multiply
    12,325.74x = 17,009.64 × 7,020.60
  4. Step 4: Simplify right side
    12,325.74x = 119,417,878.58
  5. Step 5: Solve for x
    x = 119,417,878.58/12,325.74
  6. Step 6: Final answer
    x = 9,688.50

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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.