Home / 12,358.90-17,056.47-7,054.12

Finding the Fourth Proportional to 12,358.90, 17,056.47 and 7,054.12

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Solution

The fourth proportional to 12,358.90, 17,056.47 and 7,054.12 is: 9,735.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,358.90 : 17,056.47 = 7,054.12 : x
  2. Step 2: Convert to fraction form
    12,358.90/17,056.47 = 7,054.12/x
  3. Step 3: Cross multiply
    12,358.90x = 17,056.47 × 7,054.12
  4. Step 4: Simplify right side
    12,358.90x = 120,318,386.16
  5. Step 5: Solve for x
    x = 120,318,386.16/12,358.90
  6. Step 6: Final answer
    x = 9,735.36

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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.