Home / 12,340.79-17,030.28-6,964.35

Finding the Fourth Proportional to 12,340.79, 17,030.28 and 6,964.35

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Solution

The fourth proportional to 12,340.79, 17,030.28 and 6,964.35 is: 9,610.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,340.79 : 17,030.28 = 6,964.35 : x
  2. Step 2: Convert to fraction form
    12,340.79/17,030.28 = 6,964.35/x
  3. Step 3: Cross multiply
    12,340.79x = 17,030.28 × 6,964.35
  4. Step 4: Simplify right side
    12,340.79x = 118,604,830.52
  5. Step 5: Solve for x
    x = 118,604,830.52/12,340.79
  6. Step 6: Final answer
    x = 9,610.80

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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.