Home / 12,984.07-17,918.02-7,015.74

Finding the Fourth Proportional to 12,984.07, 17,918.02 and 7,015.74

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Solution

The fourth proportional to 12,984.07, 17,918.02 and 7,015.74 is: 9,681.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,984.07 : 17,918.02 = 7,015.74 : x
  2. Step 2: Convert to fraction form
    12,984.07/17,918.02 = 7,015.74/x
  3. Step 3: Cross multiply
    12,984.07x = 17,918.02 × 7,015.74
  4. Step 4: Simplify right side
    12,984.07x = 125,708,169.63
  5. Step 5: Solve for x
    x = 125,708,169.63/12,984.07
  6. Step 6: Final answer
    x = 9,681.72

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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.